gl4
2020-04-07 Eleni Maria... Added README master
2018-03-08 Eleni Maria... accidentally linked twice, removed second link_program
2018-03-04 Eleni Maria... Samplers are not needed anymore
2018-03-04 Eleni Maria... https://khronos.org/registry/OpenGL/extensions/ARB...
2018-03-04 Eleni Maria... example OpenGL program that uses the gl_spirv OpenGL...