Revamp Counters command to use images

[Alterraia]

I'm currently creating images that give the same data as the !counters command gives. We use it enough in Sequoia.

From what I understand, if I use GitHub to store the images and have a public URL for them, then the counters.json just needs to have the URL in it so when the Prof is told to retrieve counters for Mega_Charizard_X, she will pull the URL which should convert to an image once posted.

I don't want to completely abandon the info I've written into the counters.json file. I mean, it could do both the text and the image or also it could do an "if use URL, else use text" for the ones I do not have the graphic complete.

I spoke to Slackey briefly about it, but figured I'd put it here, too. Trainwrecked suggested it as he's teaching me how to use GitHub more and more. There's one of the images I made for context.