added world saving/loading

src/Utils/SerializeHelper.js

@@ -6,6 +6,14 @@ const SerializeHelper = {
                 newobj[key] = obj[key];
         }
         return newobj;
+    },
+    overwriteNonObjects(copyFrom, copyTo) {
+        for (let key in copyFrom) {
+            if (typeof copyFrom[key] !== 'object' && typeof copyTo[key] !== 'object') {
+                // only overwrite if neither are objects
+                copyTo[key] = copyFrom[key];
+            }
+        }
     }
 }