Adding "Disable" feature for Custom Device

[Alexbarp]

Is your feature request related to a problem? Please describe.
When I am debugging several custom devices in VeriStand, I need to be able to "disable" the custom device that we have, so I can be sure that this custom device is not generating this obscure error. This is a common feature overlooked in Custom Device creation and it was common practice to always have this feature to it.

Describe the solution you'd like
I would like to have the "right click" option available for that.

Describe alternatives you've considered
If possible, it would be nice for VeriStand have this feature available to every custom device created without having to add all of the complication with the XML file (duplication with different GUIDs) and the code switching (callback) to it. It would be perfect that we should add a "XML" tag to the page saying "Allow Disable Custom Device" and all of that extra duplication would not be necessary.