fixed many memory leaks

added working shadows, using basic shadow mapping

src/Bullet3OpenCL/RigidBody/b3Solver.cpp

@@ -176,6 +176,8 @@ b3Solver::b3Solver(cl_context ctx, cl_device_id device, cl_command_queue queue,
 		
 b3Solver::~b3Solver()
 {
+	delete m_offsets;
+	delete m_numConstraints;
 	delete m_sortDataBuffer;
 	delete m_contactBuffer2;