Feature: Add introspection endpoint to auth0
Description: Commercetools wants the authentication provider to have an introspect endpoint to validate the access token. I do not want to have to host the endpoint in my app due to security concerns and would hope that auth0 could have this functionality out of the box for a seamless integration.
Use-case: We have multiple front end applications (1 react, 1 rails, 1 ios) that will be using auth0 to log the user in, then will need to make CRUD requests to commercetools to update details about a users cart or the users personal details.