Moved Scene Camera Manager to the cameras folder, split it all up and tidied everything up

Author: photonstorm

v3/src/camera/Camera.js v3/src/camera/2d/Camera.jsv3/src/camera/Camera.js renamed to v3/src/camera/2d/Camera.js

@@ -1,7 +1,7 @@
-var Class = require('../utils/Class');
-var Rectangle = require('../geom/rectangle/Rectangle');
-var TransformMatrix = require('../gameobjects/components/TransformMatrix');
-var ValueToColor = require('../graphics/color/ValueToColor');
+var Class = require('../../utils/Class');
+var Rectangle = require('../../geom/rectangle/Rectangle');
+var TransformMatrix = require('../../gameobjects/components/TransformMatrix');
+var ValueToColor = require('../../graphics/color/ValueToColor');
 
 var Camera = new Class({