Restructure Algorithms subdir and module names

No subdirs in Algorithms, just the module files

Graphics/Diagram/Gif.hs

@@ -3,7 +3,7 @@
 module Graphics.Diagram.Gif where
 
 import Algebra.VectorTypes
-import Algorithms.ConvexHull.GrahamScan
+import Algorithms.GrahamScan
 import Codec.Picture.Gif
 import qualified Data.ByteString.Char8 as B
 import Data.Monoid

Graphics/Diagram/Plotter.hs

@@ -3,10 +3,10 @@
 module Graphics.Diagram.Plotter where
 
 import Algebra.VectorTypes
-import Algorithms.ConvexHull.GrahamScan
-import Algorithms.QuadTree.QuadTree
-import Algorithms.KDTree.KDTree
-import Algorithms.PolygonIntersection.Core
+import Algorithms.GrahamScan
+import Algorithms.QuadTree
+import Algorithms.KDTree
+import Algorithms.PolygonIntersection
 import Data.Maybe
 import Data.Monoid
 import Data.Tree