By calling `icinga2 troubleshoot collect [--console]` a small file
containing basic application information and a tail of all found logs
and the latest crash report will be created [or displayed].
It does not collect config files at the moment.
refs #3446
Refactor feature list code.
Add disabled features to list output.
Add more console colors.
Change output to stdout for general logging.
fixes#7381fixes#7415
refs #7376