created glcontext in gui
koregui first steps
TextureBind now uses ShaderInputs and works without an additional TextureUnitBind-Operation
Merge branch 'hax' of github.com:KoRE0/KoRE into hax
shaderfix (crash because v_normal is not used
Merge branch 'hax' of https://github.com/KoRE0/KoRE into hax
Fixed several openGL-warnings and included GLdebug-Messages
Lights: Beginning of implementation
Added Light-loading and -rendering