Fix status field decode issue on Reponse object received from the AirVantage server

[fdur]

When a Response object is received by the client, consider the Status field like a number

[fdur]

Test:

Connected to M3DA server

--- Example 2: Sending message with response ---
DEBUG  [09:23:31.435] Waiting for response 
✅ Command sent successfully, received 1 responses
Response 0: *m3da.M3daResponse
  Status: 0, Message: , TicketID: 1234
  ✅ Found matching response for ticket ID 1234
✅ Example 2 passed

✅ All examples completed successfully!

[fdur]

@bplessis-swi
Are you sure that this is correct ?
Unit test TestBysantRoundTrip_Comprehensive:

		{
			name: "Response",
			input: &M3daResponse{
				TicketID: 12345,
				Status:   200,
				Message:  "OK",
			},
			expectedBytes: []byte{0x62, 0xe7, 0x0f, 0xad, 0xe0, 0x87, 0x05, 0x4f, 0x4b},
			context:       ContextGlobal,
		},

According to the M3DA specification, if the response status is 200 it means that an error occured.
The value to indicate a successful status is 0 and in this case, the Message field should be null