0.1.2: Thorough debug and stability improvements

Removed few unsupported attributes and fixed bugs

- Changed default sleep interval to 4 seconds (seems robust, however to support different scenarios, a configuration option will be added in the next release
- Fixed validator error that didn't let boolean values through if set for `sensors` or `switches` keys
- Removed unrequested attributes from command output (these required `querySet` command, but since that command provides settings, either service- or `input_number`-base implementation will be considered)a

0.1.0: Asynchronous listeners & switches

Based on the v0.1.0 version of Hekr API

- Major improvements to the request/response handling mechanism
- Fixed `frame_number` not being clamped bug
- Initial steps to turn the integration into a component/platform hybrid (for flexibility)
- First attempt at GUI (integration via HomeAssistant interface) _(ready in upcoming release)_
- **Added first switch!**
- Better attribute filtering
- Dynamic scanning interval (when multiple entries regarding same device are created)
- Streamlined platform integration (beyond `sensor` and `switch`, whatever comes next)
- Small bug fixes, improvements, etc.
- Partial code cleanup, static typing, localized imports