Joaosoumoreira/add method to enroll email mfa

[tanya732]

Changes

Currently there is no way to add an email channel oob authenticator because the existing addOobAuthenticator only supports adding a phone number even though you can set any oob channel. This PR will split addOobAuthenticator into addPhoneOobAuthenticator and addEmailOobAuthenticator along with test coverage for the email based method.

I was initially thinking of keeping the single method and consolidating all of the logic inside but I feel like a clear separation makes the code easier to understand and test.

References

#603

Testing

This can be manually tested by calling either addPhoneOobAuthenticator or addEmailOobAuthenticator in your projects and seeing either a valid response from the API or an error.

• This change adds test coverage
• This change has been tested on the latest version of the platform/language or why not

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All existing and new tests complete without errors

Credits

Thank you @JoaoSouMoreira for helping with #737