CreRaces Lore Friendly

This makes all the splash art in CreRaces 1x1 alpha 0 pixels and the menu backgrounds a bit more like Minecraft's. For those who might find the splash art in CreRaces a little jarring, this removes them without having to edit the mod itself, and applies a background panel in line with vanilla art. The title text of the races remains the same, and the info windows have some visual issues, but it should help align art assets for mod packs looking to use this for race selection.