Adding proper credits system

Added a script for visually improving credit view.
Tracked back the server sources before with respective owners. It possibly still needs to be updated.

scripts/npc/commands.js

@@ -198,7 +198,7 @@ function writeSolaxiaCommandsLv0() {    //Common
 
         addCommand("commands", "");
         addCommand("time", "");
-        addCommand("staff", "");
+        addCommand("credits", "");
         addCommand("uptime", "");
         addCommand("gacha", "");
         addCommand("whatdropsfrom", "");