Logoutall should use api_settings.DEFAULT_AUTHENTICATION_CLASSES ?

[skyl]

Hi, thanks for this library!

https://github.com/James1345/django-rest-knox/blob/3a1bc584f9691f4bc19d8a04a98c68c293be9ca6/knox/views.py#L94

Is there any reason why logoutall can't use all of the default auth classes by default? Seems like it works fine:

from rest_framework.settings import api_settings
from knox.views import LogoutAllView as KnoxLogoutAllView


class LogoutAllView(KnoxLogoutAllView):
    authentication_classes = api_settings.DEFAULT_AUTHENTICATION_CLASSES

urlpatterns = urlpatterns + [
    path('api/token/logoutall/', LogoutAllView.as_view(), name="knox_logout"),
    path('api/token/', include('knox.urls')),

It seems one of the best reasons to logoutall might be that you lost all of your tokens and just want to start over. So, basic or session auth would be good for this. I think the individual logout needs the token to know which token to delete though? Therefore I think it makes sense to leave authentication_classes = (TokenAuthentication,) for that one

https://github.com/James1345/django-rest-knox/blob/3a1bc584f9691f4bc19d8a04a98c68c293be9ca6/knox/views.py#L78-L86

[skyl]

If you like this idea - maybe this will work:

https://github.com/James1345/django-rest-knox/pull/285/files