message: schema: Add StopDevice/StopDevices messages
  Fixes
  Fixes
diff: "Command"
  ]
  },
  + "StopDevice": {
  + "type": "object",
  + "description": "Stops the all actions currently being taken by a device.",
  + "properties": {
  + "Id": {"$ref": "#/components/SystemId"},
  + "DeviceIndex": { "$ref" : "#/components/DeviceIndex" }
  + },
  + "minProperties": 2,
  + "maxProperties": 2,
  + "additionalProperties": false,
  + "required": [
  + "Id",
  + "DeviceIndex"
  + ]
  + },
  + "StopDevices": {
  + "type": "object",
  + "description": "Stops all actions currently being taken by all connected devices.",
  + "anyOf" : [{ "$ref" : "#/components/IdMessage" }]
  }
  },
  "type": "array",
  "LovenseCmd": {"$ref": "#/messages/LovenseCmd"},
  "SingleMotorVibrateCmd": {"$ref": "#/messages/SingleMotorVibrateCmd"},
  "RawCmd": {"$ref": "#/messages/RawCmd"},
  + "StopDevice": {"$ref": "#/messages/StopDevice"},
  + "StopDevices": {"$ref": "#/messages/StopDevices"}
  },
  "additionalProperties": false,
  "minProperties": 1,
  