Added optional paramaters to login API

[akiroz]

Added parameters to the new /oauth/token API since the old /oauth/ro API is deprecated.

[cocojoe]

Out of interest, what parameters are you sending?
Also to pass CI you need to fix your formatting, https://circleci.com/gh/auth0/Auth0.swift/438?utm_campaign=vcs-integration-link&utm_medium=referral&utm_source=github-build-link

[akiroz]

@cocojoe Thanks for reviewing this, I'm passing custom params to a rule. The app I'm working on is internal and requires device whitelisting.

I've fixed the code style but I'm not sure why the tests are failing now...

[akiroz]

Alight, fixed the tests, turns out I forgot to update the protocol extension.

[cocojoe]

Thanks, will review soon.

[cocojoe]

@akiroz looks good, please add some tests, so we know that parameters are being passed etc

[cocojoe]

Looks good in general, add actual tests for testing parameters

[akiroz]

@cocojoe Test added!

[dylanmoo]

Would love to see this merged in! I am using the Lock library for login, but Auth0 login for our test cases.

[cocojoe]

Sorry for delay, was on Holiday.