Convert Launcher Android.mk to Android.bp to setup RoboTests

Bug: 181083996
Test: m Launcher3 && install Launcher3 and test basic things
Test: m RunLauncherRoboTests (90 tests run and 3 fails)

Change-Id: Icdc839d06413409cbd52d10a5ef9fe27b0a57baa

src_build_config/com/android/launcher3/BuildConfig.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2018 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.android.launcher3;
+
+public final class BuildConfig {
+  public static final String APPLICATION_ID = "com.android.launcher3";
+  public static final boolean DEBUG = false;
+}