* Capabilities API
* introduce auxilliary capability model
* capability model and query
* render in sql
* fix pagination
* introduce sql representer
* extract abstract sql representer class
* remove yet unused methods
* abstract sql collection representer
* contract_actions as part of permissions
* filter for capability id - used in GET
* id filter validation
* remove unused representer
* remove unused wp representer
* reuse renaming class
* add spec for access control
* add principal filter to capability
* add context filter
* extract capability sql into scope
* admin gets all capabilities
* require to have one filter set to keep performance bearable
* consider active project modules for capabilities
* limit capability based on principal visiblity and user state
* rework capability to be tableless
* spec not being allowed to see on request level
* add actions to capability representer
* add action api
* extract sql index endpoint
* remove unused class
* prepare sending signaling error - not yet frontend exposed
* extract show endpoint for sql rendered responses
* use UNION for better performance
* include navigation links on collections
* remove string replacements
* extract collection representer into hal sql module
* no capabilities when blocked
* remove commented out code