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
The ctrl configuration already existed, just the corresponding column
configuration was missing.
It is now possible to hide and unhide the records within TYPO3 as usual.
Relates: #10230
Strip off seconds from strings.
Prepare code to easily provide a structured data to allow integrators to
format timing differently.
Provide a method to easily check if an opening hour is only valid for a
single day.
Relates: #10185
Opening hours are filtered. Opening hours from the past are no longer
available.
Opening hours are sorted. Newer opening hours are shown last.
Relates: #10185
