refactor fido2 commands to use load and save fcts from fileutils.c. They will now load from /client/resources and save a new file in working dir

client/src/fileutils.h

@@ -67,6 +67,7 @@ typedef enum {
     jsfEM4x05,
     jsfEM4x69,
     jsfEM4x50,
+    jsfFido,
 } JSONFileType;
 
 typedef enum {
@@ -121,7 +122,7 @@ int saveFileEML(const char *preferredName, uint8_t *data, size_t datalen, size_t
  */
 int saveFileJSON(const char *preferredName, JSONFileType ftype, uint8_t *data, size_t datalen, void (*callback)(json_t *));
 int saveFileJSONex(const char *preferredName, JSONFileType ftype, uint8_t *data, size_t datalen, bool verbose, void (*callback)(json_t *));
-
+int saveFileJSONroot(const char *preferredName, void *root, size_t flags, bool verbose);
 /** STUB
  * @brief Utility function to save WAVE data to a file. This method takes a preferred name, but if that
  * file already exists, it tries with another name until it finds something suitable.