Improve output for local package feeds

[davidfowl]

Today we show:

  OPEN Newtonsoft.Json.5.0.8.nupkg
  OPEN Newtonsoft.Json.6.0.3.nupkg
  OPEN Newtonsoft.Json.6.0.4.nupkg
  OPEN Newtonsoft.Json.5.0.8\Newtonsoft.Json.5.0.8.nuspec
  OPEN Newtonsoft.Json.6.0.3\Newtonsoft.Json.6.0.3.nuspec
  OPEN Newtonsoft.Json.6.0.4\Newtonsoft.Json.6.0.4.nuspec

It's impossible to tell which package folder it came from. We should show the full physical path

[Eilon]

Yes please! When we were with customers trying to diagnose package restore oddities we had no idea what was going on... this would be great!