New Meat textures

added items folder with Cooked and raw beef and chicken

http://www.mcmiddleearth.com/threads/meat-textures.402/ for textures and discussion 
![chicken_cooked](https://cloud.githubusercontent.com/assets/7194326/2911002/de0ace86-d651-11e3-8359-7d5f5155c674.png)
![chicken_raw](https://cloud.githubusercontent.com/assets/7194326/2911003/de1993f8-d651-11e3-9cf3-5910731cda62.png)

![beef_cooked](https://cloud.githubusercontent.com/assets/7194326/2910993/b9764334-d651-11e3-9acc-1545c4436f30.png)
![beef_raw](https://cloud.githubusercontent.com/assets/7194326/2910994/b986b156-d651-11e3-8eaa-9c74d04dcd54.png)