The base files for the project & activities and XML resources

Test: build and run manually
Change-Id: I6eb7f1a444703e99f592ac9106261f9c6bd90127

samples/IntentPlayground/src/com/example/android/intentplayground/DocumentLaunchNeverActivity.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.intentplayground;
+
+/**
+ * An activity with documentLaunch="never" set in AndroidManifest.xml
+ */
+public class DocumentLaunchNeverActivity extends BaseActivity {}