Update arena mode to colisee visapi

[JacobFischer]

The new arena, colisee, has a proper visualizer api: https://github.com/siggame/colisee-visapi/

When the connection is set to "Arena", it should hit-up that API and play back a gamelog from there.

Currently the simple arena implementation is done here:

Viseur/viseur/viseur.js

Line 77 in aeb8bef

$.ajax({

Ideally this would probably be moved to a separate function, complete with JSDoc comments, and updated to work with the new visapi.