[BUGFIX] Deprecation log with ext_tables.php

Deprecated use t3lib_extMgm::addTCAcolumns of triggers deprecation log:

    Usage of feInterface is no longer part of the TYPO3 CMS Core

Change-Id: I17dc04cdec71f76ac019897595ab94f1375f8960
Reviewed-on: http://review.typo3.org/33961
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>