F10782_TinyMce_Image_Upload_2

See merge request !456

Fixes #14813 - Report: dbIndex - missing per level definition

See merge request !459

F10782: Implemented pictureUpload.php functionality in Class File. Upload is now handled by API file.php. Added feature for function updateT3QfqConfig, possible to give config array or key. updateT3QfqConfig is handled over bool variable. Function getUniqueFileName is now in HelperFile Class. Optimized set of baseUrl.

F12630: Added code commentary. Reformatted code. getUniqueFileName function changed. New logFileMessages implemented. Awaiting feedback.

# Conflicts:
#	extension/Tests/Unit/Core/Store/StoreTest.php

F12630: min/max was only for europe date format implemented. Now the...

See merge request !458

F12630: datepicker optimized version 1.0

See merge request !457

Refs #12630. Fallback cascade of dateTimePickerType (Config > Form > FE) fixed. Refactor to use existing logic.

F12630: Extended compatibility with user given time format. Format HH:mm:ss activates field showSeconds. Record lock function for changing seconds and correctly shown arrows for seconds implemented.

F12630: Changed some functions for save behaviour. Did a lot of tests. Final version 2 of datepicker.