[TASK] SqlParser: Unify internal usage of tableType/engine

For create-table "tableType" was still used while an alter-table
used "engine".

Change-Id: Idee0e569e331ec66084484f1e8d55d9cab03ff9f
Resolves: #61129
Releases: 6.3, 6.2
Reviewed-on: http://review.typo3.org/32304
Reviewed-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>