move CellBroadcastMessage from telephony-common to app

1. add slotId in SmsCbMesage
2. move cellbroadcastMessage from telephony-common to app
next step, considering merging CellBroadcast to SmsCbMessage

Bug: 135956699
Bug: 141962867
Test: build & unit test
Merged-In: I6f2f977fc8570a69b902b75ab206ab5eb5210f8e
Change-Id: I6f2f977fc8570a69b902b75ab206ab5eb5210f8e
(cherry picked from commit 55110243)