shrink down cube size of BasicDemo 10 times (it looked ginormous in VR) from 2x2x2 meter to 0.2

add test for VR HUD/sub-titles
fix issue in previous commit, partial string use %.8s not %8.s
use long long int in b3Clock
fix warning/error in pointer alignment in serialization
Fix pybullet Windows compilation.
(thanks to bkeys/https://github.com/bulletphysics/bullet3/pull/687)

examples/BasicDemo/CMakeLists.txt

@@ -53,6 +53,7 @@ SET(AppBasicExampleGui_SRCS
         ../ExampleBrowser/OpenGLGuiHelper.cpp
         ../ExampleBrowser/GL_ShapeDrawer.cpp
         ../ExampleBrowser/CollisionShape2TriangleMesh.cpp
+		../Utils/b3Clock.cpp
 )
 
 #this define maps StandaloneExampleCreateFunc to the right 'CreateFunc'