BumbleBluetoothTests: Add PairingTest Using Bumble

* Add a pairing test to verify that a BR/EDR pairing can
  be established between Android and Bumble
* Use mockito IntentMatchers to check for incoming intent

Test: atest BumbleBluetoothTests
Bug: 300052980
Change-Id: Ia7ef28477f852f1f89eb1f9ab3369e9e4059546f