Add tests for Implicit Flow.
Add tests for Implicit Flow.

bunnyinc/django-oidc-provider,wojtek-fliposports/django-oidc-provider,torreco/django-oidc-provider,torreco/django-oidc-provider,bunnyinc/django-oidc-provider,ByteInternet/django-oidc-provider,juanifioren/django-oidc-provider,juanifioren/django-oidc-provider,ByteInternet/django-oidc-provider,wojtek-fliposports/django-oidc-provider