EMF under Linux and Windows support, also more that 6 bugs in gl2ps

Hi guys, I make code for saving OCC image in EMF format under Debian/Ubuntu, without any converters to use, directly from TKOpenGl, created EMF format compatability with StarOffice and MS Access under Windows/Wine.

I think that this code must be included in OCC 6.4. Also I fix the bug with saving .ps format under Linux /replace "." with ","/