rt1(z9 host) unbound(role) kea_dhcp(role): create unbound and kea_dhcp role for rt1

- create unbound role
- create kea_dhcp role
- configure unbound and keadhcp on rt1(z9 host)

resources/z9/rt1/nftables/nftables.conf

@@ -76,6 +76,9 @@ table inet host {
 
         # Allow DHCP server access.
 		    iifname { $lan_ifs } udp dport 67 accept comment "allow dhcp server access"
+
+        # Allow DNS server access from lan_ifs
+        iifname { $lan_ifs, $if_wg55_management } udp dport 53 accept comment "allow dns server access from lan_ifs"
     }
 }