Merge changes Ia2d84cbc,I7bb9462b,I5deaee65,I5c9a000b,If6dd7b3a

* changes:
  Change the BluetoothSocket#connect API to return L2CAP connection error code propagated from Native.
  Propagate the L2CAP error code from native to application via sockets.
  Capture the L2CAP error code from the GAP event data and propate it to the JV L2CAP socket callback.
  Add L2CAP conn result on error and propagate it upwards to GAP callback handler as a part of event data.
  Create new L2CAP Connection result codes for errors to replace L2CAP_CONN_OTHER_ERROR with specific errors in the GAP error callback.