Update Configuration from the UI

[StevenMHernandez]

From the app's UI, we should be able to update experiment parameters like

• Baud Rate
• Experiment Activity Type
• List of Actions
• Other Miscellaneous Activity-specific parameters

It would be nice to have the following options too:

• Parameters should be stored so that restarting the application does not require the user to input all of the same experiment again.
• There should be some list of old experiment parameters so that we can redo old experiments without having to manually type in each class name and other experiment specific parameters.

Any other ideas are welcome. I cannot promise that I will work on these tasks, but if anyone is interested in working on this, I am open to pull requests. Thanks!