Add different license types for uploaded files

[dartraiden]

Without it we can't load "fair use" images because wiki content is licensed under Сreative Commons license. Discord logo for example - it's non-free, but Discord doesn't prohibit to use it.

[Goraf]

Would you like to see solution exactly like on Wikipedia? Transfer it to our wiki?

[dartraiden]

At least ability to choose between the CC-BY-SA and Nonfree via "Licensing" menu.

Or something like
https://en.wikipedia.org/wiki/Template:Non-free_logo