Refactor SMS Middleware and SMS Send path.

Introduce a new Broadcast, ACTION_NEW_OUTGOING_SMS, that is similar to the existing call
equivalent ACTION_NEW_OUTGOING_CALL. This allows a receiver to rewrite the intent
or cancel it entirely.

This removes the need for injecting middleware.

Change-Id: I063288461161979f951932f32ade2cfbd72f8b73
SMS Broadcast result receiver fix:
Fix bug where sentIntents is pulled from the wrong bundle key.

Change-Id: I306be0aeeda07e065702ca30edc3818ae9be4e26
SamsungQualcommRIL: fix passing isgsm flag

Change-Id: I3a07ac5157db9c64bca1016ab137419968c16fe6