Add all built-in variables for all versions/profiles/stages of GLSL. Also, made more readable; declarations are cut and paste from the specs, with quotes around them.  This does not include built-in constants yet (other than MaxClipDistances), just the non-constants.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23551 e7fa87d3-cd2b-0410-9028-fcbf551c1848