Create Package.swift

Add package.swift for SPM

Author: jordansoltman

Package.swift

@@ -0,0 +1,33 @@
+// swift-tools-version:5.1
+
+import PackageDescription
+
+let exclude = ["PMKMapKit.h"] + ["MKMapSnapshotter", "MKDirections"].flatMap {
+    ["\($0)+AnyPromise.m", "\($0)+AnyPromise.h"]
+}
+
+let package = Package(
+    name: "PMKMapKit",
+    platforms: [
+        .macOS(.v10_10), .iOS(.v8), .tvOS(.v9), .watchOS(.v3)
+    ],
+    products: [
+        .library(
+            name: "PMKMapKit",
+            targets: ["PMKMapKit"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/mxcl/PromiseKit.git", from: "6.0.0"),
+    ],
+    targets: [
+        .target(
+            name: "PMKMapKit",
+            dependencies: ["PromiseKit"],
+            path: "Sources/MapKit",
+            exclude: exclude),
+        .testTarget(
+            name: "PMKMapKitTests",
+            dependencies: ["PMKMapKit"],
+            path: "Tests"),
+    ]
+)