Add tut14/Test texture example

http://forum.jogamp.org/Modern-JOGL-simple-texture-example-tp4029964p4029965.html

http://www.arcsynthesis.org/gltut/Texturing/Texturing.html
https://bitbucket.org/alfonse/gltut/src/tip/Tut 14 Textures Are Not Pictures

Signed-off-by Xerxes Rånby <xerxes@zafena.se>