Log the business call composer values if set

This CL adds a new flag to gate the Enriched Calling feature and adds
some logic to log the new business call composer values in the
CallLogProvider.

Bug: 324325516
Bug: 226518586 (root)
Test: CTS
Change-Id: I39fc67fe3e31bd1943c7808b351b1fe6bef43791
4 files changed