Fix outgoing synced calls

Adds a dialing state and incoming/outgoing direction differentiation,
reworks silence and mute state handling, and introduces the idea of a
synced call's "owner" (non-owners should not sync their replicas to
others, to avoid infinte replication of outgoing calls).

Additionally, use Bundle rather than Parcelable for passing call data,
as parcelables can throw exceptions due to a Telecom race condition.

Bug: 285079998
Bug: 285080418
Test: atest

Change-Id: I50a601637174608a5aaa05b0a5378c3bdd323aa5