feat(tile-converter): add convertion status dump file

modules/tile-converter/src/constants.ts

@@ -1,2 +1,3 @@
 export const BROWSER_ERROR_MESSAGE =
   'Tile converter does not work in browser, only in node js environment';
+export const DUMP_FILE_SUFFIX = '.dump.json';

modules/tile-converter/src/i3s-converter/helpers/dump-parser.ts

@@ -0,0 +1,23 @@
+import {isMap} from 'util/types';
+
+/**
+ * Convert dump map to object for stringifying to JSON
+ * @param tilesConverted - Map of tilesConverted with conversion status
+ * @returns tilesConverted Map converted to Object
+ */
+export const dumpToObject = (tilesConverted: Map<string, any>) => {
+  const object = {};
+  for (const [key, value] of tilesConverted) {
+    if (value && value.nodes) {
+      object[key] = {nodes: []};
+      for (const node of value.nodes) {
+        if (isMap(node.done)) {
+          object[key].nodes.push({nodeId: node.nodeId, done: Object.fromEntries(node.done)});
+        } else {
+          object[key].nodes.push({nodeId: node.nodeId, done: node.done});
+        }
+      }
+    }
+  }
+  return object;
+};