Merge pull request #2 from marsj725/pawns

Added pawn class
Merge pull request #3 from marsj725/pawns

Added classes to the game :)
Merge pull request #4 from marsj725/pawns

Pawns
Merge pull request #5 from marsj725/pawns

Added so all classes are formated right and extends the piece class
Did several changes, added an eventhandeler for window resizes, lifted out the drawing of pieces into it's own function in order to enable us to redraw them might still need som adjustments