Make Routing -> BGP pages more useful

A few simple enhancements could be done when you're at the device's routing -> BGP page.

1. Add a hyperlink to the ASN to take it to the /routing/proto=bgp page, filtered by that ASN. It's not currently hyperlinked - that would show all BGP peerings with that ASN
2. Right now the BGP Peer IP is hyperlinked but all it really does is refresh the same page. Change it to also go go /routing/proto=bgp, filtered by that IP, but ALSO choose one graph type - i would propose BGP updates. That way one click takes you to 'something useful.