User Interaction for Call Redirection service in Telecom

- Show UX if Telecom gets user-defined service's timeout.
When Telecom does not receive a response from user-defined service, Telecom
will cancel the outgoing call.

- Show UX if Telecom gets confirmFirst request from user-defined service's
timeout.
When Telecom's Call Redirection service receives the redirected call
from user's application, it may show an UX to confirm with users if they
want to process with the call.

Design doc: go/telecom-outflow-ux

Bug: 64959558
Test: Treehugger; Manually Telecom test app and see two types of UX
 sucessfully show up
Change-Id: Ida0d46967bcaab3e4b621a5e635a0ac04c717033