[FEATURE] Use TCA overrides for smart object management

Speed up the ext_tables loader component and load smart
object information cleaner into foreign tables.

Change-Id: I41c7d55bf5b9031ba7d0f7d597559fbb445845ce
Reviewed-on: http://review.typo3.org/32545
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>