on-prem viewer adaptation

Please allow for sites to accept a parameter that would be used as the virtual directory for the on-prem viewer adaptation URL.

As per the instructions:

https://docs.geocortex.com/workflow/latest/help/Default.htm#wf5/help/adapt-gvh-viewers.htm#Adapt_a_Viewer_to_Work_with_On-Premises_Workflow%3FTocPath%3DOne-Time%2520Setup%7C_____6

It would be nice to set this at the site level within GE Manager, rather than having to edit the JS files.