work-in-progress

add UDP network connection for physics client <-> server.
also set spinning friction in rolling friction demo (otherwise objects may keep on spinning forever)

examples/SharedMemory/PhysicsClientSharedMemory_C_API.cpp

@@ -0,0 +1,11 @@
+#include "PhysicsClientSharedMemory_C_API.h"
+
+#include "PhysicsClientSharedMemory.h"
+
+b3PhysicsClientHandle b3ConnectSharedMemory(int key)
+{
+	PhysicsClientSharedMemory* cl = new PhysicsClientSharedMemory();
+	cl->setSharedMemoryKey(key);
+	cl->connect();
+	return (b3PhysicsClientHandle)cl;
+}