rename ObsoleteDemos back to Demos

fix some relative path issues for loading assets

Demos/GimpactTestDemo/main.cpp

@@ -0,0 +1,13 @@
+
+#include "GimpactTestDemo.h"
+#include "GlutStuff.h"
+
+//################################## main #####################################
+int main(int argc,char** argv)
+{
+
+        GimpactConcaveDemo* concaveDemo = new GimpactConcaveDemo();  /// This will not be Deleted!!!
+        concaveDemo->initPhysics();
+       
+        return glutmain(argc, argv,640,480,"DevO,s GIMPACT Test Demo",concaveDemo);
+}