Parameters in setup page should be filled out from conf.yml

[nb-e]

The functions for sending commands in the setup page will need to be generalized into one function for every parameter.

This requires changes to conf.yml by adding extra sub-parameters for each parameter
For example:

1. Minimum/maximum slider values
2. Increments that the slider should go by
3. Possibly a flag that says whether this parameter should be displayed in the setup page. However, this might be unnecessary if all GUI-related sub-parameters are grouped together and thus their existence causes the GUI to display the parameter