Merge changes from topics "pdcs_builder", "pdcs_cleanup", "refactor_pdcs",...

Merge changes from topics "pdcs_builder", "pdcs_cleanup", "refactor_pdcs", "remove_apn_name_types", "transport_type_and_id"

* changes:
  Added hashcode for ApnSetting class
  Refactored precise data connection state
  Added transport type and id in precise data connection state
  Removed APN name and types from PreciseDataConnectionState
  Added builder for PreciseDataConnectionState
  Remove Deprecated-At-Birth APIs from PDCS