feat(new tools): JSON to XML and XML to JSON (#1231)

* feat(new tool): JSON <> XML

Fix https://github.com/CorentinTh/it-tools/issues/314

* Update src/tools/xml-to-json/index.ts

* Update src/tools/json-to-xml/index.ts

* Update src/tools/json-to-xml/index.ts

---------

Co-authored-by: Corentin THOMASSET <corentin.thomasset74@gmail.com>

package.json

@@ -92,6 +92,7 @@
     "vue-router": "^4.1.6",
     "vue-tsc": "^1.8.1",
     "xml-formatter": "^3.3.2",
+    "xml-js": "^1.6.11",
     "yaml": "^2.2.1"
   },
   "devDependencies": {