Parametrise any azure.net URLs

**Is your feature request related to a problem? Please describe.**
URLs against azure.net should be coming from a setting

**Describe the solution you'd like**
Have a configuration option in the dictionary to load the base urls from

i.e. https://github.com/microsoft/data-accelerator/search?q=%22azure.net%22&unscoped_q=%22azure.net%22
