Add new file

BuildConfig.java

+/**
+ * Automatically generated file. DO NOT MODIFY
+ */
+package com.example.carrentals;
+
+public final class BuildConfig {
+  public static final boolean DEBUG = Boolean.parseBoolean("true");
+  public static final String APPLICATION_ID = "com.example.carrentals";
+  public static final String BUILD_TYPE = "debug";
+  public static final String FLAVOR = "";
+  public static final int VERSION_CODE = 1;
+  public static final String VERSION_NAME = "1.0";
+}