* Xiaomi vacuum as component with switch, sensors and services
- Conversion from switch platform to async component.
- Add services proposed in #8416 to the new component, with shorter names.
- Add sensors for the vacuum robot as a selectable list from `battery`, `state`, `error`, `fanspeed`, `clean_time` and `clean_area` (the state attributes of the switch). The sensors don't poll, but listen to a signal to update the state, the switch fires this signal when updating.
- Assign default icons to sensors and the switch (`mdi:google-circles-group` looks like the robot!)
* path change in requirements_all (from switch platform to component)
* copy pasting is a bad habit
* services to the components services.yaml, modify .coveragerc
* review: use with multiple hosts, fix calls to async_add_devices, fix ranges for services
* `icon_for_battery_level` util method
* Xiaomi vacuum as platform of new component vacuum
- Created new component `vacuum` from a ToggleEntity.
- Add services `turn_on`, `turn_off`, `cleaning_play_pause`, `stop`, `return_to_base`, `locate`, `set_fanspeed` and `send_command`.
- Remove the main switch for the xiaomi vacuum (the toggable main entity is the switch).
- Add `support flags` for the common services
- Assign default icons to sensors and the switch (`mdi:google-circles-group` looks like the robot!)
- Move services descriptions to a yaml file for the new component.
- Update requirements_all.
- Update coveragerc.
* fix coveragerc
* fix battery icon helper to use more icons
* remove sensors, create properties and support flags for custom UI
* cleaning
* updated state_attrs for filtering in UI, renamed platform to simply `xiaomi`
* fix platform rename
* change fanspeed and expose `fanspeed_list` to use speed steps
* minor fixes
- Rename service `start_pause`
- Add 'Error' attribute only if `got_error`.
- Minor changes
* rename state attrs
* rename state attrs
* review changes: cut fan__speed, style changes, remove logging, and more
* add ATTR_COMMAND = 'command' to const
* pop entity_id from service data
* remove property accessor for vacuum object
* lint fix
* fix extra attrs names
* module level functions for calling the services
* params as optional keyword for `send_command`
* params as optional keyword for `send_command`, remove debug logs
* explicit parameters for `set_fan_speed` and `send_command`
* Demo platform for the vacuum component
* vacuum tests for the Demo platform
* some fixes
* don't omit vacuum
* vacuum tests for the Xiaomi platform
* fix test
* fix
* fix xiaomi test
* fix coveragerc
* test send command
* fix coveragerc
* fix string formatting
* The coverage is to low. It need 93% or more
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