Add on-screen display for Aniostropic Filtering & Texture Scaling

![ani](https://f.cloud.github.com/assets/3000282/471284/b14eeb68-b715-11e2-9408-ecbe6cd56c4f.jpg)

![tex](https://f.cloud.github.com/assets/3000282/471285/b47259ce-b715-11e2-91ee-d9904e88f48e.jpg)