Bass: Broadcast resync helper

Helps sinks to resync to external broadcast when BIS or PA unsynced.

Defined 3 types of broadcast pause when synchronization is stopped:
- HOST_INTENTIONAL for phone action
- SINK_UNKNOWN for unidentified action
- SINK_INTENTIONAL for buds action
- SINK_UNINTENTIONAL for source action

Main logic to distinguish between intentional and unintentional
sink pause:
1. Buds notifies about BIS unsync. BASS set SINK_UNKNOWN pause type.
It syncs to the broadcast and starts 6 seconds timer for
MESSAGE_BIG_CHECK_START.

2. MESSAGE_BIG_CHECK_START clears BigInfoReportExist variable
and starts 2 seconds timer for MESSAGE_BIG_CHECK_STOP

3. MESSAGE_BIG_CHECK_STOP checks if there is any BigInfoReportExist,
if so then changes pause type to SINK_INTENTIONAL. Otherwise, it
changes pause type to SINK_UNINTENTIONAL and caches sources for
future resume. It starts 5 minutes MESSAGE_SYNC_TIMEOUT to monitor
BIG appearing. Even if pause is SINK_INTENTIONAL it keeps sync by 5
minutes in case that buds send SyncInfo Request.

4. If BigInfoReport appears and pause was SINK_UNINTENTIONAL,
reciever sources synchronization is resumed.

5. On: MESSAGE_SYNC_TIMEOUT, sync established failed, sync lost,
HOST_INTENTIONAL action or buds automatic resynchronization,
whole procedure is stopped.

Extras:
- Above logic works even on first connection with broadcast,
so if there is no BIG, BASS will monitor it for 5 minutes and
sync automatically.
- Sync to the broadcasts already synced with sinks on searching
start, that improves time of showing it on the list.

Bug: 355218881
Bug: 363168099
Test: atest BassClientServiceTest
Change-Id: I91cf99fbec73f57a259fa0bab2e555bd82912976