add the lfeditor extension

ot_templating/composer.json

@@ -15,7 +15,8 @@
         "fluidtypo3/fluidpages": "^5",
         "co-stack/logs": "",
         "guzzlehttp/guzzle": "^6",
-        "ext-json": "^1.6"
+        "ext-json": "^1.6",
+        "sgalinski/lfeditor": "^6"
     },
     "replace": {
         "ot_templating": "self.version",