Add a BUILD file for the WallpaperPicker app. am: 55686c886d am: 64a86bd585 am: 24573416f9

Original change: https://android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker/+/1833217

Change-Id: I7e369f4cc74c195ee4cacd2031eedd1a88d0c024
diff --git a/BUILD.bazel b/BUILD.bazel
new file mode 100644
index 0000000..220b68d
--- /dev/null
+++ b/BUILD.bazel
@@ -0,0 +1,10 @@
+load("@rules_android//rules:rules.bzl", "android_binary")
+
+android_binary(
+    name = "WallpaperPicker",
+    srcs = glob(["src/**/*.java"]),
+    custom_package = "com.android.wallpaperpicker",
+    manifest = "AndroidManifest.xml",
+    resource_files = glob(["res/**"]),
+    deps = ["//prebuilts/sdk/current/support:android-support-v4"],
+)