Simplify block drawing further, store shape of block

src/Dodge/Draw.hs

@@ -3,7 +3,7 @@ Rexports all Dodge.x.Draw files.
 -}
 module Dodge.Draw (
     module Dodge.Beam.Draw,
-    module Dodge.Block.Draw,
+--    module Dodge.Block.Draw,
     module Dodge.Item.Draw,
     module Dodge.Button.Draw,
     module Dodge.EnergyBall.Draw,
@@ -23,7 +23,7 @@ module Dodge.Draw (
 
 import Dodge.Beam.Draw
 import Dodge.Item.Draw
-import Dodge.Block.Draw
+--import Dodge.Block.Draw
 import Dodge.Button.Draw
 import Dodge.EnergyBall.Draw
 import Dodge.Flame.Draw