Allow headless setup command

#1

Allow setup arguments to be passed with the command redbot-setup instead of opening a setup menu. Useful for Docker images which can’t easily answer the setup questions.

#2

you already have that under redbot command, check out redbot --help

#3

You cannot run redbot before running redbot-setup, it will give an error. There is no headless option for redbot-setup.

#4

You can, just read and find the good flags to do that

#5

after some discussion on discord, it is infact a good idea to make it possible to create an instance without having to follow the prompt, using some flags on redbot-setup seems possible :slight_smile: