DRAFT: first version of offset method in modifier

src/modifier/Modifier.js

@@ -453,6 +453,16 @@ class Modifier {
         }
     }
 
+    offset(modify=null){
+        if(arguments.length > 1){
+            
+        }
+        if(Number.isInteger(modify)){
+            new TwoDimPoint(modify, modify)
+        }
+        return this;
+    }
+
     /**
      * 
      * @returns {Modifier}