fix: Adds reset RNG command (#1201)

Projects/UOContent/Commands/ResetRng.cs

@@ -0,0 +1,20 @@
+using Server.Random;
+
+namespace Server.Commands;
+
+public class ResetRng
+{
+    public static void Initialize()
+    {
+        CommandSystem.Register("RestRng", AccessLevel.Administrator, ResetRng_OnCommand);
+    }
+
+    [Usage("RestRng")]
+    [Description(
+        "Resets the global RNG. Use with care! Do not reset often as this will affect the over-all distribution."
+    )]
+    private static void ResetRng_OnCommand(CommandEventArgs e)
+    {
+        RandomSources.SetRng(new Xoshiro256PlusPlus());
+    }
+}