Room cleaning Feature
Thank you very much for realizing the new room features!

Unfortunately I currently have the problem that homebridge crashes when I write the room definitions into the JSON.

```
        {
            "accessory": "XiaomiRoborockVacuum",
            "name": "Staubsauger",
            "ip": "192.168.178.xx",
            "token": "blablabla",
            "waterBox": false,
            "pause": true,
            "dock": true,
	    "cleanword": "cleaning",
	    "rooms": [
				{
				"id": 1,
				"name": "Wohnzimmer"
				},
				{
				"id": 2,
				"name": "Flur"
				}
	    ]
        }
```

I'm definitely doing something wrong. ;)

```
[2/26/2020, 13:19:35] [Staubsauger] Initializing XiaomiRoborockVacuum accessory...
[2/26/2020, 13:19:35] [Staubsauger] INF createRoom | undefined | Room Wohnzimmer (1)
[2/26/2020, 13:19:35] [Staubsauger] INF createRoom | undefined | Room Flur (2)
[2/26/2020, 13:19:35] TypeError: Cannot read property 'toString' of undefined
    at Accessory.addService (/usr/local/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/Accessory.js:154:59)
    at /usr/local/lib/node_modules/homebridge/lib/server.js:471:19
    at Array.forEach (<anonymous>)
    at Server._createAccessory (/usr/local/lib/node_modules/homebridge/lib/server.js:451:14)
    at Server._loadAccessories (/usr/local/lib/node_modules/homebridge/lib/server.js:309:26)
    at Server.run (/usr/local/lib/node_modules/homebridge/lib/server.js:91:38)
    at module.exports (/usr/local/lib/node_modules/homebridge/lib/cli.js:59:10)
    at Object.<anonymous> (/usr/local/lib/node_modules/homebridge/bin/homebridge:17:22)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
    at Module.load (internal/modules/cjs/loader.js:1002:32)
    at Function.Module._load (internal/modules/cjs/loader.js:901:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
    at internal/main/run_main_module.js:18:47
[2/26/2020, 13:19:35] Got SIGTERM, shutting down Homebridge...
```