fix: Fixes loading multi when client is missing (#996)

* Changes reading multi.mul/multi.idx so it is loaded entirely during bootup.
* Fixes finding files in Linux.
* Fixes handling HS format.
* Removes verdata support.

ModernUO will still have issues if there is a multi.mul that is pre-HS loaded when it detects a client that is 7.0.9+.

Projects/Server/Main.cs

@@ -249,15 +249,13 @@ namespace Server
             {
                 fullPath = Path.Combine(p, path);
 
-                if (IsLinux)
+                if (IsLinux && !File.Exists(fullPath))
                 {
                     var fi = new FileInfo(fullPath);
                     fullPath = fi.Directory!.EnumerateFiles(
                         fi.Name,
                         new EnumerationOptions { MatchCasing = MatchCasing.CaseInsensitive }
                     ).FirstOrDefault()?.FullName;
-
-                    break;
                 }
 
                 if (File.Exists(fullPath))