I added the feature of high-lighting a piece if is selected and the possible locations it can move.
  NOTE: Blank spaces on the board are now a piece called Empty (Name.EMPTY and Colour.Neutral)

  ERROR: Throws an error when selecting Queen or Bishop, so it's gotta be an issue in the Bishop MoveEngine. I couldn't find the problem, maybe you can. Its just late and I wanna sleep, otherwise I'll fix it after calc tomorrow.