Add UnrealIRCd support network to the list of IRCv3 Testnets.

While the primary purpose of the network is to provide support
for UnrealIRCd, it is also used to test releases and often runs
git or release candidates before the actual stable release.

Author: syzop

_data/su_networks.yml

@@ -100,6 +100,37 @@
       na:
         stable:
           starttls: direct TLS only
+    - name: UnrealIRCd Support
+      ircd-ver: UnrealIRCd-5
+      net-address:
+        link: ircs://irc.unrealircd.org:6697/
+        display: irc.unrealircd.org
+      link: https://www.unrealircd.org/
+      support:
+        stable:
+          account-notify:
+          account-tag:
+          away-notify:
+          batch:
+          bot-mode:
+          cap-3.1:
+          cap-3.2:
+          cap-notify:
+          chghost:
+          draft/chathistory:
+          echo-message:
+          extended-join:
+          labeled-response:
+          message-tags:
+          msgid:
+          multi-prefix:
+          sasl-3.1:
+          sasl-3.2:
+          server-time:
+          starttls:
+          sts:
+          userhost-in-names:
+          webirc:
 
 - name: Networks
   note: >