Add CookieConfig to Csrf middleware

[fanie42]

Can we add CookieConfig to the Csrf middleware too? Mainly I would like to be able to change the csrf token cookie name. I don't know how applicable all of the fields are, but maybe it can just be copied from Session middleware?

let app = Route::new()
        .nest("/", api_service)
        .with(ServerSession::new(CookieConfig::new().name("my_session_id_cookie_name").secure(false), MemoryStorage::new()))
        .with(Csrf::new(CookieConfig::new().name("my_csrf_token_cookie_name").secure(false)));

EDIT: I might have been a bit misguided... Swagger UI uses a cookie for csrf, but that obviously shouldn't be used in production. You can close this one I think.