+ add XGL/ZGL importer. Some features (includes, object refs, textures not supported yet).

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1210 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/ImporterRegistry.cpp

@@ -163,6 +163,9 @@ corresponding preprocessor flag to selectively disable formats.
 #ifndef ASSIMP_BUILD_NO_M3_IMPORTER
 #   include "M3Importer.h"
 #endif 
+#ifndef ASSIMP_BUILD_NO_XGL_IMPORTER
+#   include "XGLLoader.h"
+#endif 
 
 namespace Assimp {
 
@@ -285,6 +288,9 @@ void GetImporterInstanceList(std::vector< BaseImporter* >& out)
 #if ( !defined ASSIMP_BUILD_NO_M3_IMPORTER )
 	out.push_back( new M3::M3Importer() );
 #endif
+#if ( !defined ASSIMP_BUILD_NO_XGL_IMPORTER )
+	out.push_back( new XGLImporter() );
+#endif
 }
 
 }