zio fork 1.8.2b-zio7: guardian rank tag, ranks on private messages

#rank/guardian shows as G, after the staff ranks so a staff rank wins. css_psay from a player
reads "(PM) [RANK] name: message" ("(PM) name: message" without a rank group); console's is
unchanged. New lang keys sa_psay_template and sa_psay_template_norank.

CS2-SimpleAdmin/Commands/basechat.cs

@@ -128,9 +128,16 @@ public partial class CS2_SimpleAdmin
         var utf8BytesString = Encoding.UTF8.GetBytes(message);
         var utf8String = Encoding.UTF8.GetString(utf8BytesString);
 
+        // zio: from a player, "(PM) [RANK] name: message".
+        var rank = caller == null ? null : Helper.GetStaffRankTag(caller);
+        var line = caller == null || _localizer == null
+            ? $"({callerName}) {utf8String}".ReplaceColorTags()
+            : rank == null
+                ? _localizer["sa_psay_template_norank", callerName, utf8String.Trim()]
+                : _localizer["sa_psay_template", rank, callerName, utf8String.Trim()];
         playersToTarget.ForEach(player =>
         {
-            player.PrintToChat($"({callerName}) {utf8String}".ReplaceColorTags());
+            player.PrintToChat(line);
         });
 
         command.ReplyToCommand($" Private message sent!");