Added string[] HelpDesc to Command.

Cleaned up. Check commit for details.

Olink disagrees for reasons. Now let's at least try to counterreact the usefulness of Pull Requests. Thank you @nicatronTg for your wise words. Still not great, but viable code & better than asking Devs to do stuff for you.

I saw this in Raptor's HelpText and decided to try and pull a no-break version of it.