Added preliminary binary serialization code in btCollisionWorld.cpp, with example in Bullet/Demos/BasicDemo.cpp

(work-in-progress, some initial working version should be ready very soon, for Bullet 2.76)

src/BulletCollision/CollisionDispatch/btCollisionWorld.h

@@ -68,6 +68,8 @@ class btStackAlloc;
 class btCollisionShape;
 class btConvexShape;
 class btBroadphaseInterface;
+class btDefaultSerializer;
+
 #include "LinearMath/btVector3.h"
 #include "LinearMath/btTransform.h"
 #include "btCollisionObject.h"
@@ -420,6 +422,9 @@ public:
 		m_forceUpdateAllAabbs = forceUpdateAllAabbs;
 	}
 
+	///Preliminary serialization test for Bullet 2.76. Loading those files requires a separate parser (to be added in the Bullet/Extras)
+	void	serialize(btDefaultSerializer* serializer);
+
 };