Add capability to set user tags on devices discovered by proxy probes such as rsp

Idea created by chris.leach on Apr 2, 2015
    New
    Score22
    We use user tags in dynamic grouping and selection for reports.
    Hosts discovered by proxy probes such as rsp, zones, vmware etc dont have user tags so cannot be dynamically grouped.
    Adding this capability would make the handling of such hosts more consistant.