scene so that g_scene can be deprecated later.

Lock/Unlock mechanism safer, and implement the rule of three.

objects themselves.

and the codec logic.

quaternion, improve quat::rotate(vec3, vec3) to gracefully handle corner
cases, and add unit tests for all of these.

Added workbench, for personnal experimentation.

Shiny*.lolfx : fixed Directional light calculation.
MV : Tweak for future camera behaviour encapsulation.

Wireframe is back for normal OGL users
MV : Added timed command execution for future "demo mode"

MViewer : Small tweak