Implement passwordless login [SDK-1185]

[Widcket]

Changes

Added

login(email:code:audience:scope:parameters:)

Logs in a user using an email and an OTP code received via email (last part of the passwordless login flow)

Auth0
   .authentication(clientId: clientId, domain: "samples.auth0.com")
   .login(email: "support@auth0.com", code: "123456")
   .start { result in
       switch result {
       case .success(let credentials):
           print(credentials)
       case .failure(let error):
           print(error)
       }
   }

You can also specify audience, scope, and additional parameters

Auth0
   .authentication(clientId: clientId, domain: "samples.auth0.com")
   .login(email: "support@auth0.com",
        code: "123456",
        audience: "https://myapi.com/api",
        scope: "openid email",
        parameters: ["state": "a random state"])
   .start { print($0) }

---

login(phoneNumber:code:audience:scope:parameters:)

Logs in a user using a phone number and an OTP code received via sms (last part of the passwordless login flow)

Auth0
   .authentication(clientId: clientId, domain: "samples.auth0.com")
   .login(phoneNumber: "+4599134762367", code: "123456")
   .start { result in
       switch result {
       case .success(let credentials):
           print(credentials)
       case .failure(let error):
           print(error)
       }
   }

You can also specify audience, scope, and additional parameters

Auth0
   .authentication(clientId: clientId, domain: "samples.auth0.com")
   .login(phoneNumber: "+4599134762367",
        code: "123456",
        audience: "https://myapi.com/api",
        scope: "openid email",
        parameters: ["state": "a random state"])
   .start { print($0) }

Testing

• This change adds unit 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
• All existing and new tests complete without errors
• All active GitHub checks have passed

[joshcanhelp]

Looks great so far! Mostly questions, a couple of tiny changes and a few questions for you.

[joshcanhelp]

Looks great and thank you for the thorough answers!