Next pass is clean-up and fix of all the old usage

We have no hope of extending lua_State to add more data to it, because
that object may be created by Lua itself, for instance within a coroutine,
and it has no knowledge of our version of the object.

The containers no longer force the user to use the ptrdiff_t type for
size information. For convenience, size() now always returns an int,
and the size_s() method offers a way to handle arrays with more than
2 billion elements. Internally, we still use ptrdiff_t, though.

Since so much code had to be changed, I took the opportunity to get
rid of capitalised accessors for classes that are lowercase.

Reworked Primitive logic for scene rendering
FileUpdateTester works now .....

MeshViewer first pass

- removed 18805 CR characters
 - removed 774 trailing whitespaces
 - replaced 1922 tabs with spaces
 - fixed 31 svn:eol-style properties

Add SafeEnum var in lua
MeshViewer SceneSetup is operational
Added imGui to vs-solution, not implemented yet

and 2) fuck the Visual Studio compiler that crashes when confused.

SceneSetup : Added ClearColor command
EZMesh : Added Dup[ ... ] command && cgs command syntax refactor
MViewer : Tweak & dictionnary.js updates