Matrix: read raw rules that are a match and a verdict

A raw rule that matches and then accepts, drops or rejects (counter and
log allowed, no interfaces) is an exception of every pair of its chain,
shown as "raw: …", instead of unknown; one not for new connections is
skipped like any rule. Interfaces, jumps, NAT, set and verdict maps
stay unknown. The imported IPv6 neighbour discovery rule (hop limit
255) now reads as allowed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/e2e.sh

@@ -344,6 +344,7 @@ not_contains "wg0_net"
 run "the internet to the firewall" 0 H matrix wan firewall
 contains "blocked  *sources that can't come from outside"
 contains "allowed  *udp/51820"
+contains "allowed  *raw: icmpv6 type"
 
 # ---- statistics (sampled every 3 seconds here)