Dialogflow-fulfillment

-------------------

Removed
~~~~~~~

* RichResponse's set_* methods (use property attributes instead).
* WebhookClient's set_followup_event method (use property attribute instead).

Dependencies
~~~~~~~~~~~~

* Change sphinx's template to `furo`.
* Upgrade many development dependencies.

-------------------

Fixed
~~~~~

* Bug when the webhook request is an empty JSON.

Dependencies
~~~~~~~~~~~~

* Bump dependencies in requirements and setup files

-------------------

Added
~~~~~

* Code of Conduct file.

Dependencies
~~~~~~~~~~~~

* Django example dependencies versions.

-------------------

Fixed
~~~~~

* Bug when parsing `WebhookRequest` object in Django example (1).
* Bug when calling `response` in `WebhookClient` multiple times (2).

-------------------

Added
~~~~~

* Continuous integration and continuous deployment with Github Actions.

Improved
~~~~~~~~

* Health of the source code.
* Documentation.

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Added
~~~~~

* Getters and setters for RichResponse's attributes (and deprecation warnings
to set_*() methods).
* Getter and setter for WebhookClient's followup_event attribute (and
deprecation warning to set_followup_event() method).
* Docs: Examples to WebhookClient's methods docstrings.
* Docs: Examples to RichResponse's attributes docstrings.
* Docs: "See also" sections in RichResponse's docstrings.
* Docs: Type hints to WebhookClient's handle_request() method's docstring.
* Docs: "Detailed example" section in "Fulfillment overview" page.

Improved
~~~~~~~~

* Typing annotations coverage.