Define WBP_HUD_PlayerSlot, per character in order to set up Gimmicks and variations#32

In the current version of the Workshop Build is possible to crate a copy of the WBP_HUD_OverheadDisplay blueprint and defined it in the Renderer Blueprint of a modded characters, allowing for some variations on the Overhead HUD, per character and even per skin.

However the same can’t be currently done with the WBP_HUD_PlayerSlot, if this could be implemented it will allow us to make adjustments to that Hud and could make character UI Variations and gimmicks possible.