fixes #1186 added carpetCommandPermissionLevel to allow admins to control who has access to /carpet command.

src/main/java/carpet/CarpetSettings.java

@@ -127,6 +127,27 @@ public class CarpetSettings
     public static String commandDistance = "true";
     */
 
+    private static class CarpetPermissionLevel extends Validator<String> {
+        @Override public String validate(ServerCommandSource source, ParsedRule<String> currentRule, String newValue, String string) {
+            if (source.hasPermissionLevel(4))
+                return newValue;
+            return null;
+        }
+
+        @Override
+        public String description()
+        {
+            return "This setting can only be set by admins with op level 4";
+        }
+    }
+    @Rule(
+            desc = "Carpet command permission level. Can only be set via .conf file",
+            category = CREATIVE,
+            validate = CarpetPermissionLevel.class,
+            options = {"ops", "2", "4"}
+    )
+    public static String carpetCommandPermissionLevel = "ops";
+
 
 
     @Rule(desc = "Gbhs sgnf sadsgras fhskdpri!!!", category = EXPERIMENTAL)