Introduced token retrieval and auto refresh

• Introduced TokenSet retrieval by logging in with the Daikin Cloud credentials.
• The credentials can be input using YAML file configuration or via config flow.
• A new TokenSet is automatically retrieved when expired.
• Removed tokenset.json usage, now all data is stored in HA config_entries.
• Introduced reload service, that allows to force the retrieval of a new TokenSet.
• NOTE: before updating, the integration has to be deleted and re-created afterwards.

Filtering out Opentherm gateway devices

Opentherm Gateway devices (providing "DRGATEWAYAA" as modelInfo) are now filtered out.

Fix for units which don't provide horizontal swing

Fixed bug, that made units without horizontal swing unavailable.

First official release

Done some cleanups.

v0.9.2: first version actually working

Fixed the connection problems present in v0.9.0.
Other fixes and improvements.

First version actually working

• Fixed the connection problems present in v0.9.0.
• Other fixes and improvements.

v0.9.0: first working version

First published version. Everything should be working, even though some problems may appear.