[CLEANUP] Add missing empty lines after copyright comments II

At the moment in some classes you can find an empty line between the
copyright comment and the first use statement. In some (far less) other
classes there is no such empty line.

This commit adds an empty line between those comments if there is no
empty line.

This is not part of the TYPO3 CMS CGL but increases consistency in this
area.

This regular expression was used to add the empty lines:

Search:
( \* The TYPO3 project - inspiring people to share!\n \*/\n)(use )

Replace:
$1\n$2

Resolves: #63829
Releases: master
Change-Id: I4b28a1cfcfc727016ac5d89b3988d236270f37e2
Reviewed-on: http://review.typo3.org/35391
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

Classes/FrontendEditPanel.php

@@ -13,6 +13,7 @@ namespace TYPO3\CMS\Feedit;
  *
  * The TYPO3 project - inspiring people to share!
  */
+
 use TYPO3\CMS\Backend\Utility\IconUtility;
 
 use TYPO3\CMS\Core\Utility\GeneralUtility;