Merge changes from topic "data_activity"

* changes:
  Added data activity support
  Exempt IMS from single PDN arbitration
  Fix race condition in data network
  Fixed another out of boundary exception in data retry manager
  Sent deactivation reason shutdown properly
  Fixed crash in data retry manager
  Added traffic descriptor for default data profiles
  [DSRM] Fix the index ArrayIndexOutOfBoundsException
  Added umetered method for data network controller
  Apply slicing capabilities before connected
  Fixed delay IMS tear down
  Reevaluate unsatisfied network requests when TAC changes
  Gracefully handle duplicate network interface