Hacky Home assistant support for Xiaomi vacuum STYJ02YM

Install:

• Create the following folder structure: /config/custom_components/miio2 and place all files there 4 files there.
• Add the configuration to configuration.yaml, example:

vacuum:
  - platform: miio2
    host: 192.168.68.105
    token: !secret vacuum
    name: Mi hihi