* Add custom user defined states
* make tests more reliable
* fix list options
* Adapt version
* do not engage if rebuilding
* remove unneeded attr
* remove unneeded attr
* fix enum imports
* adapt cove target
* Add status_custom_key to all other serializers
* fix serializer method
* simplify branching
* remove unneeded imports
* inherit read_only status from leader field
* Add more tests
* fix tests
* add test for function
* refactor for easier testing
* move test to seperate class
* Add options testing
* extend serializer
* add test for all states and refactor to reuse already build functions
* use custom field in PUI too
* reset diff
* style fix
* fix comparison
* Add test for str
* test color exceptions too
* remove user state from tracking
* Add intro from model fields too
* update docs
* simplify implementation
* update tests
* fix name
* rename test
* simplify tags and test fully
* extend test to machine status
* move logic for response formatting over
* extend api response with machine status
* ensure only direct subclasses are discovered
* test for length of total respone too
* use new fields on PUI too
* fix test assertion with plugins enabled
* also observe rendering in filters
* Add managment endpoints and APIs
* Add contenttypes to PUI renderes
* use filteres instead
* fix import order
* fix api route definition
* move status choices to serializer
* fix lookup
* fix filtering
* remove admin integration
* cleanup migration
* fix migration change
* cleanup code location
* fix imports
* Add docs for custom states
* add links to custom status
* Add database model for defining custom units
- Database model
- DRF serializer
- API endpoints
* Add validation hook
* Custom check for the 'definition' field
* Add settings page for custom units
- Table of units
- Create / edit / delete buttons
* Allow "unit" field to be empty
- Not actually required for custom unit definition
* Load custom unit definitions into global registry
* Docs: add core concepts page(s)
* Add some back links
* Update docs
* Add unit test for custom unit conversion
* More unit testing
* remove print statements
* Add missing table rule
