Implement the terminal-based call waiting

Terminal-based call waiting can be enabled
with the configuration items following:

- From CarrierConfigManager.ImsSs:
  KEY_TERMINAL_BASED_CALL_WAITING_DEFAULT_ENABLED_BOOL
  KEY_TERMINAL_BASED_CALL_WAITING_SYNC_TYPE_INT
  KEY_UT_TERMINAL_BASED_SERVICES_INT_ARRAY

The waiting voice calls over CS and PS are controlled
by the terminal per the user's setting not by the network.

Bug: 202463005
Test: atest
Change-Id: I89d4363146d7ba446f0785e368419c0b8c9f89e0
(cherry picked from commit 6c8755a243a3e6a9b30ae2f489826f730a36c201)
Merged-In: I89d4363146d7ba446f0785e368419c0b8c9f89e0