Added European model Air Purifier 2H

[hesje]

PR to add model 2H. Model seems to have the same capabilities as other models. The only difference I see is that it doesn't have an RFID reader that recognizes the filter and is used for monitoring the filter's used time.

[apauly]

I can confirm that the european version only works with this patch. Without it, this condition will not pass: https://github.com/seikan/homebridge-mi-air-purifier/blob/5fefaf6155b5c8a8d30ac459771dd44b74530156/index.js#L155