[camera] Regenerate iOS example with Swift (#11283)

Updates the iOS example app for `camera_avfoundation` to a Swift app. Rather than edit in place, this replaces the example app with a fresh copy to minimize drift from current template:
- The existing ios/ directory was deleted
- A new copy was created with `flutter create --platforms=ios --org=dev.flutter .`
- The RunnerTest code was restored (other than unused files; see #11240), and the placeholder file removed.
- The important Info.plist entries were restored.
- The special logic to bypass app launch plugin registration during unit tests was moved from main.m, which no longer exists, to the delegate callback where registration would be done.

I also did some minor test file cleanup I noticed while validating everything in Xcode again:
- Remove some stale references to and usage of the `FLT` prefix (missed during Swift migrations).
- Added some missing headers that local compilation complained about.

This is part of an overall modernization of the example apps; most packages have already been converted to Swift examples.

## Pre-Review Checklist

[^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

Author: stuartmorgan-g

packages/camera/camera_avfoundation/example/.gitignore

@@ -0,0 +1,45 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.build/
+.buildlog/
+.history
+.svn/
+.swiftpm/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+/coverage/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

packages/camera/camera_avfoundation/example/.metadata

@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "ff37bef603469fb030f2b72995ab929ccfc227f0"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: ios
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

packages/camera/camera_avfoundation/example/ios/.gitignore

@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

packages/camera/camera_avfoundation/example/ios/Flutter/AppFrameworkInfo.plist

@@ -20,9 +20,5 @@
   <string>????</string>
   <key>CFBundleVersion</key>
   <string>1.0</string>
-  <key>UIRequiredDeviceCapabilities</key>
-  <array>
-    <string>arm64</string>
-  </array>
 </dict>
 </plist>

packages/camera/camera_avfoundation/example/ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

packages/camera/camera_avfoundation/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

packages/camera/camera_avfoundation/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -44,6 +44,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <MacroExpansion>
          <BuildableReference
@@ -56,10 +57,11 @@
       </MacroExpansion>
       <Testables>
          <TestableReference
-            skipped = "NO">
+            skipped = "NO"
+            parallelizable = "YES">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "03BB76672665316900CE5A93"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
                BuildableName = "RunnerTests.xctest"
                BlueprintName = "RunnerTests"
                ReferencedContainer = "container:Runner.xcodeproj">
@@ -71,6 +73,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"
@@ -88,16 +91,9 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-         <AdditionalOption
-            key = "NSZombieEnabled"
-            value = "YES"
-            isEnabled = "YES">
-         </AdditionalOption>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
-      buildConfiguration = "Release"
+      buildConfiguration = "Profile"
       shouldUseLaunchSchemeArgsEnv = "YES"
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"

packages/camera/camera_avfoundation/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>