Codegen for parcelable/dataclass boilerplate

This is the initial implementation of the `codegen` cli utility
for in-place java boilerplate generation

See DataClass and SampleDataClass for documentation/guide/examples.

See tools/codegen/ for implementation and tests/Codegen/ for tests.

Bug: 64221737
Test: . frameworks/base/tests/Codegen/runTest.sh
Change-Id: I75177cb770f1beabc87dbae9e77ce4b93ca08e7f
diff --git a/tests/Codegen/AndroidManifest.xml b/tests/Codegen/AndroidManifest.xml
new file mode 100644
index 0000000..2f18550
--- /dev/null
+++ b/tests/Codegen/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<!--
+  ~ Copyright (C) 2015 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
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.codegentest">
+
+    <application/>
+
+    <instrumentation
+        android:name="androidx.test.runner.AndroidJUnitRunner"
+        android:targetPackage="com.android.codegentest"
+        android:label="Codegen test" />
+</manifest>