Merge changes from topic "network_request_match_callback"

* changes:
  WifiManager: Network request match callback registration
  wifi(API): NetworkSpecifier for Wifi NetworkAgent
  wifi(API): Mark old API's deprecated
  wifi(API): New API surface for network suggestion
  wifi(API): New API surface for connection via NetworkRequest
tree: 2aa22550e8d0abc9eb31fd6b5511ddec28783845
  1. core/
  2. services/
  3. tests/