Typed entity definitions

[zoe-codez]

Changes

• 23

• 2

This changes the flow so that type-writer is working off the typescript factory APIs in order to generate entity definitions.

States & attributes for common domains are now more refined, attempting to provide string unions instead of string where appropriate. This requires some matching changes to hass to properly match these new types

Checklist

• [x] Read the contribution guide and accept the code of conduct
• [x] Readme and docs (updated or not needed)
• [x] Tests (added, updated or not needed)