add UrlHelpers with absoluteJsImportUrl function to convert a path relative to docroot to an absolute url at runtime

public/js/helpers/UrlHelpers.js

@@ -0,0 +1,10 @@
+const absoluteJsImportUrl = function(relativeurl)
+{
+	const absoluteurl = FHC_JS_DATA_STORAGE_OBJECT.app_root
+		+ relativeurl
+		+ '?'
+		+ FHC_JS_DATA_STORAGE_OBJECT.fhcomplete_build_version;
+	return absoluteurl;
+}
+
+export { absoluteJsImportUrl };