Add meliusltexx ( Samsung Galaxy Mega 6.3 GT-I9205 ) 

The device tree is available at the link below.
https://github.com/sileshn/android_device_samsung_meliusltexx/tree/aospa

Xda thread for my personal builds is available below.
http://forum.xda-developers.com/showthread.php?t=2578518