message: core: add Easter egg
  We like name changes very much.
diff: @@ -49,6 +49,8 @@ public:
  /**
  * @brief Returns the version of MAVSDK.
  *
  + * Note, you're not supposed to request the version too many times.
  + *
  * @return A string containing the version.
  */
  std::string version() const;
  