[TASK] Make Exception message more helpful

Let the missing hookobject tell, what class it is, in order to
find the place where the interface might be missing.

Change-Id: I5a654384005b74e1256ab2019e936c7da7a76ab6
Resolves: #67787
Releases: master
Reviewed-on: http://review.typo3.org/40697


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>