Did some reorganizing

lib/managers/light_manager.rb

@@ -0,0 +1,4 @@
+class IMICFPS
+  class LightManager
+  end
+end

lib/managers/object_manager.rb

@@ -0,0 +1,20 @@
+class IMICFPS
+  TextureCoordinate = Struct.new(:u, :v, :weight)
+  Vertex = Struct.new(:x, :y, :z, :weight)
+  Point = Struct.new(:x, :y)
+  Color = Struct.new(:red, :green, :blue, :alpha)
+
+  class ObjectManager
+    OBJECTS = []
+    def self.add_object(model)
+      OBJECTS << model
+    end
+
+    def self.find_object()
+    end
+
+    def self.objects
+      OBJECTS
+    end
+  end
+end