Add support for new get_users_by_email endpoint

[chrisbroome]

The auth0 node.js client got support for the get_users_by_email about 3 weeks ago (auth0/node-auth0@80c9b0c).

This is pretty critical for us because the way we are currently searching for users (using the get_users API with search_engine=v2 and q=some-user@example.com) no longer works.

[wbashir]

Any updates to this?

[dkvasnicka]

Use the Users.list method, it supports v2 search engine and the q parameter: https://github.com/auth0/auth0-python/blob/master/auth0/v3/management/users.py#L27

[saltukalakus]

@dkvasnicka search by email endpoint is recommended instead of that endpoint where possible. I have pushed a PR => #96 hopefully will be merged soon.

[saltukalakus]

cc @aaguiarz

[lbalmaceda]

@chrisbroome Following up here while the new endpoint's PR is ongoing. The new search_engine=v3 should perform fine when querying a User in the GET /users endpoint.

[chrisbroome]

I'm actually actually no longer on the project that uses this repo, so I'm fine with closing out the issue.

[joshcanhelp]

Addressed in #96