Amd volunteers wanted

Heya,

I am opening this thread in order to have a place to discuss the testing of samples involving amd-only extension in the jogl-samples

Hi, I've got a Radeon HD 4850 for testing. Just piping in so I'll be updated when the extensions are ready.

Ok, let's do a general check for extensions first :D

https://github.com/elect86/jogl-samples/blob/master/jogl-samples/src/tests/micro/Check_Amd_Extensions.java