Adds add2app Flutter module and an iOS project to run it. (#126)

experimental/add_to_app/SimpleIOSExample/Podfile

@@ -0,0 +1,27 @@
+# Uncomment the next line to define a global platform for your project
+# platform :ios, '9.0'
+
+# These three lines add the dependencies for example_module to the workspace
+# for the project:
+flutter_application_path = '../example_module'
+`pushd "#{flutter_application_path}" && flutter create . && popd`
+load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')
+
+target 'SimpleIOSExample' do
+  # Comment the next line if you don't want to use dynamic frameworks
+  use_frameworks!
+
+  # Pods for SimpleIOSExample
+  install_all_flutter_pods(flutter_application_path)
+
+  target 'SimpleIOSExampleTests' do
+    inherit! :search_paths
+    # Pods for testing
+  end
+
+  target 'SimpleIOSExampleUITests' do
+    inherit! :search_paths
+    # Pods for testing
+  end
+
+end