Petisco

* Update RequestResponded Domain Event version

* Update RequestResponded Domain Event version
* Add ValueObject definition. ClientId, UserId and Name now inherits from it. Add guard function to ease ValueObject check

* Solved bug on RequestResponse compatibility with elastic engine. Now content field is always a dict

Now, `ApplicationConfig` needs a new string-based input with the `app_name`.

**Improvements**:

* Add event RequestResponded
* Add event RequestResponded to controller handler. Now you can inject an event manager to a controller
* Add app_name to ApplicationConfig. Add application to controller (useful to feed the RequestResponded event).
* Add better error handling when the application crashed due to a bad Application Configuration
* Add EventConfig to `controller_handler`
* Update README.md

* Update meiga dependency

Fix dataclasses dependencies versions