[FEATURE] Add annotation for CLI only commands

This adds the annotation "@cli" to declare Extbase CommandController
commands to be usable on CLI only and is used to remove these commands
from the Scheduler task list.

Also annotate the following commands as CLI only:

- help:help
- extension:install
- extension:uninstall
- extension:dumpclassloadinginformation

Resolves: #68746
Releases: master
Change-Id: Ifb55def33c11e4a10510433f03ddc9279ee56898
Reviewed-on: http://review.typo3.org/43268


Reviewed-by: Nicole Cordes <typo3@cordes.co>
Tested-by: Nicole Cordes <typo3@cordes.co>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>