* Move set addon options to aiohasupervisor
* addon stats to aiohasupervisor and test fixes
* addon changelogs to aiohasupervisor
* Raise correct error for library in tests
* Cache client in instance property
* Use singleton method rather then HassIO instance method
* Mock supervisor client in more tests
* Split up hassio coordinator and data into new file to allow preload
Since we cannot mark hassio as having a config_flow, it will
not get preloaded and since cloud will almost always load right
after it and block the import executor, we want to preload
the hassio config_flow and platform modules so the other
dependants can continue on while cloud is being imported
to not delay startup
* tweak
* tweak
