Set up Package.swift

Author: ishkawa

.gitignore

@@ -32,3 +32,7 @@ Pods/
 Carthage/Checkouts
 Carthage/Build
 .DS_Store
+
+# SPM
+#
+Packages

Package.swift

@@ -0,0 +1,15 @@
+import PackageDescription
+
+let package = Package(
+    name: "Action",
+    targets: [],
+    dependencies: [
+        .Package(url: "https://github.com/ReactiveX/RxSwift.git", majorVersion: 3)
+    ],
+    exclude: [
+        "Sources/Action/UIKitExtensions/AlertAction.swift",
+        "Sources/Action/UIKitExtensions/UIBarButtonItem+Action.swift",
+        "Sources/Action/UIKitExtensions/UIButton+Rx.swift",
+    ]
+)
+