Move BT SMS to internal/telephony

- Added BtSmsInterfaceManager for sending SMS over bluetooth
- Renamed UiccSmsController as it's now used for BT and Uicc based SMS
- Deleted unused sendText methods

Bug: 127331685
Test: Manually tested by sending SMS over bluetooth
Change-Id: I990aa4873ccf981e71c55795c83f0a0b2bbb87b6