#106 MathMod-11.0

[Abderrahman Taha]

1) Complete rewrite of MathMod's OpenGL viewer in order to make it OpenGl ES compatible: MathMod can now run (or easily adaptable to run) on mobile systems and platforms with limited resources (See MathMod running on a RaspberryPi with RaspberryPi-OS(32 Bit) : https://www.facebook.com/parisolab/posts/3634364993347597)
2) Add: possibility to show/hide a selected component , two new scripts ("Groupings of Knots" , "Knotted Möbius strips") and OpenGL diffuse/ambient lights setting.
4) Bug-fixes, code optimization and documentation update.