making a branch
Merge branch 'divyam' into mayank
adding pendulum, pulley 1, pulley2
adding second pulley, hammer, rotating bar system and pendulum container
adding dominos, pendulum-group, ball-shooter
simulation final except last event
final simulation with boat
Merge branch 'mayank' of https://github.com/mayank127/cs296-project into divyam
modification and documentation