Add known SIM accounts to account drawer

Add listener to SIM changed broadcast
Load SIM accounts from ContactsContract API
Treat them similarly as device local accounts
Mark SIM accounts as not-writable, to avoid making it seem like AOSP
supports writing to the SIM.
Need to special case and add SIM accounts as a separate drawer filter
because of that

Test: Manual test, verifying SIM account appears and account view shows
correct contacts and count.
Bug: 177603484

Change-Id: I5449cbedbc76bc80047b64afd71041e6e0255764