The installer does not work, if doc comment reflection
is broken, so we need to make the first install step
more robust by using inject methods and introducing
a failsafe view which does simple php templating
in case critical errors (like doc comments disabled)
occur.

Resolves: #55352
Releases: 6.2
Change-Id: I424d6a290b65ae023ec19a745477cfaecdef72c7
Reviewed-on: https://review.typo3.org/27067
Tested-by: Alexander Opitz
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn