[TASK] Use ModuleTemplate API for web_func

Releases: master
Resolves: #69879
Change-Id: If0b246709220e49e2f4419094c4ffb3a6727a62c
Reviewed-on: http://review.typo3.org/43759


Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>
Reviewed-by: Ruud Silvrants <ruudsilvrants@gmail.com>
Tested-by: Ruud Silvrants <ruudsilvrants@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>