Implement custom chat representations for configs

[xpple]

Closes #14. This PR adds a new annotation property for custom chat representations of config values. In the chat, using Components yield the most customisability, more than just Strings. Hence the representation function has this as return type.

[fooeyround]

This is probably better than my pr, definitely better with the location of the map filling, I should have put that in its own method, calling it at the Collection/Map/Object branching.
Thank you for this, but can't you embed styles with § in vanilla and & in paper, vanilla users could use the built-in toString translator. Paper users could do their own thing. Either way it seems to be fine, working fine for @config, I forgot about adding a way for api users to access, but I guess with it being String represented it would be easier.

Either way thank you for doing this in less than 2 days!

[xpple]

can't you embed styles with § in vanilla and & in paper, vanilla users could use the built-in toString translator.

I think you can, but iirc it's a legacy system which I don't really want to rely on.