Separating framework platform crashrecovery jar

Creating new jar "framework-platformcrashrecovery".
This would separate all the apis to a different sdk library while still
being part of core platform.
This jar is behind release_crashrecovery_module flag which also controls enabling CrashRecovery module apex.
Based on the flag only one of platformcrashrecovery jar or CrashRecovery Apex will be used.

So essentially on device if release_crashrecovery_module flag is
1. true: CrashRecovery Apex is present, this jar is not used
2. false: CrashRecovery Apex is not used, this jar is present

Bug: 289203818
Test: Jar is present in Bootclasspath on device
Test: ExplcitHealthCheckService registered on device
Flag: build.release_crashrecovery_module
Change-Id: I4696e74a1ba236614398b48a6d7145777079286b