Tech Demo 1 V0.2

Made some changes to the demo to make it more useful for experimenting and playing around in:

• Objects no longer float, they stay exactly where you placed them
• Objects can intersect freely and do not collide with each other
• Added simple models to represent the controllers, used as part of the visual feedback experience
• Added more cubes of varying sizes, plus some spheres and monkeys
• Added haptic feedback