Creation of sessionId and passing it between PermissionController fragments.

SessionId will be used in logging of user interactions with PermissionController

Test:  Tested locally with log statements added to each activity.
Bug: 133401502
Change-Id: I04dd387421017b1e663d5933ad37ef24e21ec38a
Merged-In: I04dd387421017b1e663d5933ad37ef24e21ec38a
(cherry picked from commit a0395db9)