Add href= attributes to pagination links

I tried adding href attributes to the pagination links in order to enable "Open In New Tab/Window" and middle mouse button behaviors.

It is a Work In Progress.  I don't know how to create a URL from parameters.

I was looking at Volt::Routes#params_to_url(test_params) 
https://github.com/voltrb/volt/blob/ca715efed64412e6db94b9ddbe36505524dc1e7d/lib/volt/router/routes.rb#L76

This _currently_ only works at the site root with page numbers in the path like
/
/1
/2