- Add vector2d and dimension2d attributes (both already had incomplete parts of implementations for some reason)
- Add tests for vector2d and dimension2d attributes
- Test currently failing on Win32-VS: collisionResponseAnimator, sceneCollisionManager, screenshot

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3996 dfc29bdd-3216-0410-991c-e03cc46cb475