Merge changes Ia401bcf0,I724939c1,I606f4aff,I548ee2ad,Iee6c37a7, ...

* changes:
  rusty-gd: update hal facade
  rusty-gd: introduce RxAdapter
  rusty-gd: switch hci facade to grpc context
  rusty-gd: shim & facade are very similar, start sharing code
  rusty-gd: split HAL into control & acl
  rusty-gd: allow parting out injected values