c/[render|util]: Add cylinder and equirect2 shaders
Co-authored-by: Simon Zeni simon.zeni@collabora.com
Co-authored-by: Charlton Rodda charlton.rodda@collabora.com
Co-authored-by: Simon Zeni simon.zeni@collabora.com
Co-authored-by: Charlton Rodda charlton.rodda@collabora.com