Computation times

00:03.779 total execution time for 4 files from examples/scenario:

Example	Time	Mem (MB)
Gantt Chart (plot_gantt_chart.py)	00:02.097	0.0
Store observables (plot_store_observables.py)	00:01.550	0.0
Create a DOE Scenario (plot_doe_scenario.py)	00:00.092	0.0
Create an MDO Scenario (plot_mdo_scenario.py)	00:00.040	0.0