Add a split horizon resolv.conf

- in default namespace, point to 194.1.163.3 and .4
- in dataplane namespace, point to lab.ipng.ch (192.168.1X.4 and 2001:678:d78:2X1::ffff)
- renumber ipv4 transit nets, so that .4/31 is labX.lab.ipng.ch <-> e0.vppX-0
- refactor common args (like nameserver search paths, node count, etc)

Regenerate the whole thing.

config/common/generic.yaml

@@ -10,3 +10,13 @@ overlays:
   frr:
     path: overlays/frr/
     build: build/frr/
+
+lab:
+  mgmt:
+    ipv4: 192.168.1.80/24
+    ipv6: 2001:678:d78:101::80/64
+    gw4: 192.168.1.252
+    gw6: 2001:678:d78:101::1
+  nameserver: 
+    search: [ "lab.ipng.ch", "ipng.ch", "rfc1918.ipng.nl", "ipng.nl" ]
+  nodes: 4