Summary: Test effect of route-map on received/advertised routes

Summary: Test effect of route-map on received/advertised routes

This patch adds the ability to see the effect of applying a route-map on
the routes received or advertised from or to a neighbor. This effect can
be seen without actually affecting the current state. If the result seen
is what is desired, then the user can actually apply the route-map.
Currently, the application acts on route-map in or out and on unsuppress
maps.

Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>