Added visual workspace files for osgSim nodekit and osglightpoint demo.

include/osgSim/Version

@@ -29,12 +29,12 @@ extern "C" {
     [AC_MSG_ERROR(OpenSceneGraph library not found. See http://www.openscenegraph.org)],)
  \endverbatim
 */
-extern SG_EXPORT const char* osgSimGetVersion();
+extern OSGSIM_EXPORT const char* osgSimGetVersion();
 
 /**
  * osgSimGetLibraryName() returns the library name in human friendly form.
 */
-extern SG_EXPORT const char* osgSimGetLibraryName();
+extern OSGSIM_EXPORT const char* osgSimGetLibraryName();
 
 }