Enforce GLSL 1.4 on more Mesa systems (#1559)

[rhaschke]

Mesa-based rendering issues showed up e.g. on AMD GPU as well. The new approach should handle any Mesa 20-based system.
Fixes #1584.

[peci1]

@rhaschke Also an AMD cpu here. However, for compatibility with the pretty new hardware, I installed Mesa from kisak-mesa PPA. That PPA provides Mesa 21.0, so the fix used here won't work for me. Passing --opengl 310 to rviz fixes it, but it would be nice to have it working by default.

GL_RENDERER   = AMD RENOIR (DRM 3.40.0, 5.10.24-051024-generic, LLVM 11.0.1)
GL_VERSION    = 4.6 (Compatibility Profile) Mesa 21.0.0 - kisak-mesa PPA
GL_VENDOR     = AMD

Should I submit a melodic-devel PR that would enable the workaround for any 2x.y Mesa?

[rhaschke]

Should I submit a melodic-devel PR that would enable the workaround for any 2x.y Mesa?

Yes, please.