Update framework from jetpack.

Changes included:
* 8acc04a: Remove unnecessary clones in some builders.
* d3ad52e: Build-gated trace logs for AppSearchImpl.
* 6ff6bd3: Reimplement AppSearchImpl's initialization flow.
* 02658df: Minor fixes to AppSearchImpl.
* 15aa2a1: Clarify docs around AppSearchBatchResult.Builder.
* 3041027: Document how to get an AppSearchSession for developers.
* 6cf5f78: Document parameters of report usage requests.
* ad3f9fa: Implement MagrationFailure.toString()
* dc74c99: Add coverage to the public api MigrationFailure.
* 755bf36: Add API coverage for SetSchemaRequest.

Bug: 184575938
Bug: 184575880
Bug: 175430168
Bug: 187849451
Bug: 187351264
Bug: 187351084
Bug: 186242890
Bug: 187420294
Bug: 187880094
Bug: 183239679
Bug: 183239898
Test: Presubmit
Change-Id: Ibe1a6422326c8d19b18f49dac6b8826617cd2bc2