Write Bumble tests for content uri permissions check in BluetoothOppLauncherActivity

* Implement stub opp service in Bumble reference device
* Add test helper apk to enable content uri permission scenarios involving multiple packages outside of Bluetooth
* Implement parameterized tests for all combinations of cross-user/manifest/grant permissions

Flag: TEST_ONLY
Ignore-AOSP-First: Security fix
Test: atest BumbleBluetoothTests
Bug: 193800863
Change-Id: Id10b56d472ca1615cd9472a7f8278270b687634b