Receive forwarded number from Modem

Adds forwarded number to Call information

Update 1.6 HAL:
- Added Call
- Added getCurrentCalls_1_6
- Added getCurrentCallsResponse_1_6

Test: Build pass.
Bug: 29063067

Change-Id: I8e43439e5638b7820d156d8fc6fe963cf1edf6f0
6 files changed