got rid of edgeflags as I now draw all wire frames face-by-face using

got rid of edgeflags as I now draw all wire frames face-by-face using
line loops. Split wire and solid drawing in two separate functions
Now doing polygon to triangle decomposition using vertex indices that
are passed to glDrawElements, saves on memory, executes more efficient,
and makes wireframe drawing a piece of cake.
This should be GLES1 compatible too, hope so!

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@1184 7f0cb862-5218-0410-a997-914c9d46530a