Changes to the files under pws for acrobot, cartpole, quadrotor along with new data files.

Generated new pws_input data for acrobot with max function evaluations for fmincon set to 50000 and 100000.
Generated new pws_state data for acrobot with max function evaluations for fmincon set to 50000 and 100000.
Generated pws_input_data for quadrotor with max function evaluations for fmincon set to 300000.
Generated pws_state_data for quadrotor with max function evaluations for fmincon set to 300000.
Created files save_pws_input_acrobot.m and 'save_pws_state_acrobot.mwhich are used byrun_pws_acrobot.m` to verify results with and without pws.
Modified run_sps_acrobot.m to verify it works.
Renamed save_pws_z_input_cartpole.m to save_pws_input_cartpole.m.
Renamed save_pws_z_state_cartpole.m to save_pws_state_cartpole.m.
Modified save_pws_input_quadrotor.m and save_pws_state_quadrotor.m with bug fixes in indexing sigma and eta.
Created a new file run_pws_quadrotor.m to verify results with and without pws using save_pws_input_quadrotor.m and save_pws_state_quadrotor.m.

shrenikm / PTE