[BUGFIX] Move issueCommand to BackendUtility

To mitigate the dependencies to DocumentTemplate, the method
issueCommand() was moved to BackendUtility and given the
speaking name getLinkToDataHandlerAction().

Resolves: #65728
Releases: master
Change-Id: Ie38108bbf97c4d44329f68b3a262af7e97166a86
Reviewed-on: https://review.typo3.org/44329


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Gernot Schulmeister <gernotschulmeister@gmx.at>
Tested-by: Gernot Schulmeister <gernotschulmeister@gmx.at>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>