[TASK] EXT:form - Add HTML4 / HTML5 attributes for BUTTON to wizard

Add new attributes to the wizard element BUTTON.

Resolves: #70338
Releases: master
Change-Id: I504e6fd3b6890fda9d2563c58a4f850d4ca80cd2
Reviewed-on: http://review.typo3.org/43779


Reviewed-by: Bjoern Jacob <bjoern.jacob@tritum.de>
Tested-by: Bjoern Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>