YRD226/246 pin code management

[jpg0]

Added pin code message support for Yale YRD226/246. This is simply enabling the support which already exists in zigbee-herdsman-converters. I have tested this on my own lock (YRD246) and all works fine. It likely works with other Yale locks too, however I cannot test this so have not enabled it.

[Koenkk]

Thanks!

[adampetrovic]

@jpg0 can we please update the documentation for the device to include PIN code management?

I don't see any indicators on the current docs that this is enabled and how to use it:
https://www.zigbee2mqtt.io/devices/YRD226_246_TSDB.html#yale-yrd226%252F246%2520tsdb

[jpg0]

Koenkk/zigbee2mqtt.io#779

Also included the changes to expose user_status: #2514

[pattetech]

Could you include in the documentation how to use the year_day_schedule, week_day_schedule parameters? This is not clear. The rest of the documentation is ok.