* [V3 Launcher] add launcher
* [V3 Launcher] move extras selection to its own function
* Add distro to requirements
* [V3 Launcher] platform.linux_distribution -> distro.linux_distribution
* [V3 Launcher] add methods of setting cli flags to be passed
* [V3 Launcher] pass remaining args not known to launcher's argument parser to redbot
* [V3 Launcher] handle KeyboardInterrupt in launcher
* [V3 Launcher] undo something that would break stuff
* [V3 Launcher] remove co-owners from interactive mode redbot cli flag selection
* [V3 Launcher] clarify the disable console interaction option
