Moved OpenGL renderering code into its own class for future optimizations

lib/objects/terrain.rb

@@ -2,6 +2,7 @@ class IMICFPS
   class Terrain < GameObject
     def setup
       bind_model(ModelLoader.new(type: :obj, file_path: "objects/randomish_terrain.obj", game_object: self))
+      # bind_model(ModelLoader.new(type: :obj, file_path: "/home/cyberarm/Documents/blends/untitled.obj", game_object: self))
       self.scale = 1
       @nearest_vertex_lookup = {}