fix: Codegens gifts. Unifies staff names. Thank you to the community! (#1766)

### Summary
* Adds contributors/sponsors to the "staff" list for holiday items.
* Unifies all of the staff lists
* Moves 2004 winter gifts to the appropriate folder
* Codegens the gift items

## Thank you!
Thank you to the RunUO/ServUO community, Owyn, Jaedan, the Outlands community, and the ModernUO contributors/community. Without all of you, this would not be possible! ❤️

Projects/UOContent/Misc/StaffInfo.cs

@@ -0,0 +1,50 @@
+namespace Server.Misc;
+
+public static class StaffInfo
+{
+    private static readonly string[] _staff =
+    {
+        // ModernUO Sponsors
+        "Prayer",
+        "Arch Lich Oro",
+        "Tamashii",
+
+        // ModernUO Contributors
+        "nibbio",
+        "what the moose",
+
+        // RunUO Contributors
+        "Aenima",
+        "Alkiser",
+        "ASayre",
+        "David",
+        "Krrios",
+        "Mark",
+        "Merlin",
+        "Merlix",  //LordMerlix
+        "nerun",
+        "Outkast", //TheOutkastDev
+        "Phantom",
+        "Phenos",
+        "psz",
+        "Quantos",
+        "Ryan",
+        "Sp1der", // Kamron
+        "V",       //Admin_V
+        "Zippy",
+
+        // ServUO Contributors
+        "Vorspire",
+        "kevin-10",
+        "Argalep",
+        "dmurphy22",
+        "qbradq",
+
+        // Outlands Staff
+        "Owyn",
+        "Luthius",
+        "Jaedan"
+    };
+
+    public static string GetRandomStaff() => _staff.RandomElement();
+}