Allow applyDataMaps via a router/facade call

Assuming https://github.com/zenoss/zenoss-prodbin/pull/174 is accepted, then allow applyDataMaps to be set via a router or facade call.

Having a non-PB API endpoint for this will be nice, but if this is used for anything more than trivial data, it will eat up the zope process and potentially cause UI problems. 

I think it should ship the data to a job that can send it to the hub to apply through the normal ADM flow. It doesn't necessarily give you immediate DB updates though.