Now, instead of custom-setting the initial configuration of the actuated object, we do grasp sampling. This ensures that the initial configuration is contact so that we can make a fair comparison with the exact gradient methods (#52)
The save files names comply with the conventions in the data repo.
Some tweak of parameters (e.g. tolerance is set to zero so we do each run on a fixed number of iterations)
Closes #49 .
Data repo found in https://github.com/hjsuh94/ptc_data/
This change is