Adds a new type of import configuration.
This configuration allows to define a single resource.
All the resources referenced via schema:containsPlace will be imported.
Relates: #10237
* Support generation of code coverage generation
* Remove useless caching within GitHub
* Add TYPO3 11.5 within CI
* Update phpstan
Replace friendsoftypo3/phpstan-typo3 with saschaegerer/phpstan.
The friendsoftypo3 is intended for TYPO3 itself, while saschaegerer is
intended for community.
Also update all related packages.
Fix some new findings and update baseline.
* Run composer none interactive in CI
* Remove dependency checker
* Migrate tests to no longer use legacy dependencies
* https://forge.typo3.org/issues/97479
* Fix phpstan findings
Provide first basic import mechanism.
It already allows to import entities into TYPO3 database.
Three entities are supported.
Entities are configured through import configuration.
This can be created, viewed, and edited through backend module.
Imports are tracked and accessible from backend module.
Still this is basic.
Importing lists of entities is not supported.
Multiple languages is not supported, etc.
Relates: #8214
