polygon triangulation (step 9 : intersection - almost finished / set of simple polygons - start)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31235 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Two font-size menu added - just for testing. (New menus are commented out.) (#3193)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31236 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for #4006

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31237 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Conic code generator update

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31238 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e