Add a way to display stacktrace of StacklessRuntimeException for debug

src/main/java/carpet/script/exception/StacklessRuntimeException.java

@@ -1,5 +1,7 @@
 package carpet.script.exception;
 
+import carpet.script.external.Carpet;
+
 /**
  * A type of {@link RuntimeException} that doesn't spend time producing and filling a stacktrace
  */
@@ -18,6 +20,10 @@ public abstract class StacklessRuntimeException extends RuntimeException
     @Override
     public Throwable fillInStackTrace()
     {
+        if (Carpet.isDebugEnabled())
+        {
+            return super.fillInStackTrace();
+        }
         return this;
     }
 }

src/main/java/carpet/script/external/Carpet.java

@@ -142,6 +142,11 @@ public class Carpet
         return CarpetSettings.fillUpdates;
     }
 
+    public static boolean isDebugEnabled()
+    {
+        return CarpetSettings.superSecretSetting;
+    }
+
     @Nullable
     public static Module fetchGlobalModule(String name, boolean allowLibraries) throws IOException
     {