Add distance test when checking for overlapping bound polygons

src/Geometry/LHS.hs

@@ -3,7 +3,6 @@ module Geometry.LHS
     , isRHS
     ) where
 import Geometry.Data
-import Geometry.Vector
 -- | Test whether a point is on the LHS of a line.
 -- Returns False if the line is of zero length.
 isLHS