Add numeric 569 used by UnrealIRCd 6.1.7. (#88)

Author: tommyrot

_data/numerics.yaml

@@ -3694,6 +3694,13 @@ values:
         origin: Nefarious
         conflict: true
 
+    -
+        name: RPL_WHOISASN
+        numeric: "569"
+        origin: "Used by InspIRCd's m_asn module."
+        format: "<client> <nick> 64496 :is connecting from AS64496 [Example Corp]"
+        comment: Used for displaying ASN info to IRCOps.
+
     -
         name: RPL_REAWAY
         numeric: "597"