Add copyright headers and OSS compliance footer

Fixes T261228226: OSS compliance failures in executorch-examples.

Changes:
- Added Meta BSD-style copyright headers to all 48 source files
  (.py, .sh, .pro, .kt, .gradle.kts, .cpp) that were missing them
- Appended License, Terms of Use, Privacy Policy, and Copyright
  statement to README.md

The copyright header uses the standard Meta format:
  Copyright (c) Meta Platforms, Inc. and affiliates.
  Licensed under the BSD-style license found in the LICENSE file.

Author: psiddh

README.md

@@ -2,3 +2,14 @@ Example apps and demos using PyTorch's [ExecuTorch](https://github.com/pytorch/e
 
 ## License
 ExecuTorch is BSD licensed, as found in the LICENSE file.
+
+## License
+
+This source code is licensed under the BSD-style license found in the
+LICENSE file in the root directory of this source tree.
+
+---
+
+Copyright © 2025 Meta Platforms, Inc
+
+[Terms of Use](https://opensource.fb.com/legal/terms) | [Privacy Policy](https://opensource.fb.com/legal/privacy)

Yolo/android/app/proguard-rules.pro

@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
 # Add project specific ProGuard rules here.
 # You can control the set of applied configuration files using the
 # proguardFiles setting in build.gradle.
@@ -18,4 +24,4 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile

cifar/android/CifarETTrainingDemo/app/build.gradle.kts

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
@@ -67,4 +75,4 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
-}
+}

cifar/android/CifarETTrainingDemo/app/proguard-rules.pro

@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
 # Add project specific ProGuard rules here.
 # You can control the set of applied configuration files using the
 # proguardFiles setting in build.gradle.
@@ -18,4 +24,4 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile

cifar/android/CifarETTrainingDemo/app/src/androidTest/java/com/example/democifar10/ExampleInstrumentedTest.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10
 
 import androidx.test.platform.app.InstrumentationRegistry

cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/Cifar10ImageExtractor.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10
 
 import android.content.Context

cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/ImageTransformations.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10
 
 import kotlin.random.Random

cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/MainActivity.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10
 
 import android.graphics.Bitmap

cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/ui/theme/Color.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10.ui.theme
 
 import androidx.compose.ui.graphics.Color
@@ -8,4 +16,4 @@ val Pink80 = Color(0xFFEFB8C8)
 
 val Purple40 = Color(0xFF6650a4)
 val PurpleGrey40 = Color(0xFF625b71)
-val Pink40 = Color(0xFF7D5260)
+val Pink40 = Color(0xFF7D5260)

cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/ui/theme/Theme.kt

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package com.example.democifar10.ui.theme
 
 import android.app.Activity
@@ -45,4 +53,4 @@ fun DemoCIFAR10Theme(
         typography = Typography,
         content = content
     )
-}
+}