Cookie based authentication

[Parbelaez]

Hello,

I see that the rest_framework_simplejwt.authentication.JWTAuthentication authentication class is only checking for the Authentication: Bearer Token header, but there is no way to do it directly with the cookies (no authentication header).

In fact, by default, it seems like Www-Authenticate is bearer dependent, and when using the dj-rest-framework JWTCookieAuthentication class is not overriding the authentication method.

Could a simpleJWT cookie exclusive authentication method be added?

Thanks!

[Andrew-Chen-Wang]

Track #71