Add a way to plot multiple static and dynamic walks.

[JaimePSantos]

Description of proposed feature

The new feature would require a rework of how both of these pages work. The ability to select multiple walks and plot them at once should be useful.

How can the new feature be used?

The user navigates to the static or dynamic page, gets prompted to create a new walk. The page with the graph and other input requirements would then appear, and after the user is finished and clicked done, this new walk would be listed with a button to select whether or not to include that walk in the plot. This will also require a rework on how the statistics about the quantum walk are displayed.

Additional comments