Unique character portrait border for workshop fighters#15

It’s weird seeing the workshop characters with the fire elemental border. I think workshop characters should come with a neutral border, or a unique one like a gear.

Mockup below.

The MatchHud is one of the oldest UIs left in the game right behind the Results screen and both just so happen to also be written in mostly blueprint nodes which don’t work too well with the modding flow. We have plans in the future to port the MatchHud and Results screens to c++ so once that happens more workshop customization will be made available to affect those screens.