S13787 datetimepicker documentation added and JS Correction

See merge request !409

F13440 Save activated forms pill

See merge request !408

Fixes #13818. Maybe there is a better place to fix the typeahead array issue than to sanitize all possible types of value

S13818 Changed to check only value of array. Because key(id) as a number is not needed to check. It doesnt has impact to output. An array is only given if typeAheadSql with id and value is used.

S13818 Implemented check if $value is array and do the check in a foreach loop for every string in this array.

S13787 Corrected qfq-datepicker JS to get min and maxDate work. Added documentation for the possible datetimepicker configurations which can be set.

F13440 Implemented JS-script to save forms informations and get existing informations from session storage. The last activated pill will be saved as information for every form with its own record Id.

F10782 TinyMCE: Feature for own base path is implemented. Over forms parameter user can give with 'fileUploadPath=fileadmin/...' own path upload. Documentation for base path file is added.

B11134 Samesite header for cookies

See merge request !406

# Conflicts:
#   extension/Classes/Core/Store/Session.php

F10096 Fixed problem of not showing time in FE_Type 'time'. Now only time will...

See merge request !405

Merge remote-tracking branch 'origin/B11134_Set_samesite_header_for_cookies' into B11134_Set_samesite_header_for_cookies

B11134: Changed the way of calculating expireDate. Default secure is set to false (to get cookies over HTTP) and added commentary how to set it correctly to true if needed. Tested under PHP 7.2. Test under 7.3 or higher must be made.

WIP: site request over http works fine with login. With https there are some problems to get to the page.

F10096 Fixed problem of not showing time in FE_Type 'time'. Now only time will be shown if this type of FE is choosen.

Master

See merge request !404

Button is seperated in own div with class row and col-md-12. Now it will be...

See merge request !403

F13543 multiple base url

See merge request !402