* open up API for plugins by removing internal
* use constants in entity column definition
* simplified entity management API
* bump packages
* allow installing assets and run database migrations independently
* bump to apidoc-bundle 5
* do not duplicate http method in API operationId
* new security entries in Open API definition
* changed API UI provider for Swagger to Stoplight, improved endpoint titles, hide internal endpoints
* deactivate swagger json endpoint
* removed unused mapping information
* added support for further field types
* fixed changing date objects for begin and end
* added more project fields as invoice variables
* theme update and asset rebuild
