[TASK] Move NotFound icons to EXT:core

Resolves: #67990
Releases: master
Change-Id: I171fb2f5bfdf237fc61001a3158e38599b00756b
Reviewed-on: http://review.typo3.org/41007


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>