Test app for call companion app

A two-button test app that provides a means to trigger CDM association
and disassociation with the profile that should grant the third party
InCallService the permission to bind to Telecom.

How to use:
1) Install the app
2) Click on Start Association
3) Pair a bluetooth device
4) Use the Phone to receive an incoming call
5) Should observe a toast saying "OnCallAdded"
6) End the call, should observe a toast saying "OnCallRemoved"
6) Click on Stop Association
7) Use the Phone to receive an incoming call, and disconnect the call
8) Should not observe a toast saying "OnCallAdded" or "OnCallRemoved"

Test: manual
Bug: 169595473
Change-Id: I3581f8dff1278c7fa85b8ae3e7c8906f30c35e41
(cherry picked from commit f92496809f456c9fe2366be940c380bebe1b26d5)
diff --git a/testapps/companionapp/Android.bp b/testapps/companionapp/Android.bp
new file mode 100644
index 0000000..e3612a1
--- /dev/null
+++ b/testapps/companionapp/Android.bp
@@ -0,0 +1,24 @@
+//
+// Copyright (C) 2019 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.
+//
+
+android_test {
+    name: "TelecomCompanionApp",
+    static_libs: [
+        "androidx.legacy_legacy-support-v4",
+        "guava",
+    ],
+    srcs: ["src/**/*.java"],
+}