Implement SIM swapping

When the call is still ringing, a new button is added to allow to user to call with the other SIM. A background worker will be created to hang up the phone and redial with the other SIM. The in call UI will be prevented from ending during the process.

 Video: https://drive.google.com/a/google.com/file/d/0B2eYBUUznfyTSl9MdXQ0V1ZzQkE/view?usp=sharing

 UX has not been finalized, the icon and position are just placeholder.

Bug: 64215256
Test: SwapSimWorkerTest
PiperOrigin-RevId: 171715715
Change-Id: Idb3f486e9fc9a45d4c5e244af2d7d91b075bf0f2
12 files changed
tree: 35bbae5a10d673a11eec6f20954305bc2eb9aa4f
  1. assets/
  2. java/
  3. Android.mk
  4. AndroidManifest.xml
  5. CONTRIBUTING
  6. LICENSE