[FEATURE] Uninstall broken ext in install tool

Adds buttons to uninstall incompatible extensions
to the install tool extension compatibility tester.
You may install extensions one-by-one or all at
once.

Change-Id: I717e127128f0f26e5b6711e0c1db04cf8d8cbfce
Resolves: #50940
Releases: 6.2
Reviewed-on: https://review.typo3.org/22972
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn