Add missing firebase options

[armand1m]

• signInWithPhoneNumber
• signInWithCustomToken(token)
• signInWithEmailLink(email, window.location.href)
• signInWithSAMLProvider()

[armand1m]

Is anyone actually needing any of those?

[DevanandGowda]

@armand1m signInWithPhoneNumber is a good to have feature since many apps use OTP based logins.

[mackenzie-orange]

I have use case for the SAML provider that's provided by Cloud Identity Platform (which is rebranded Firebase Auth for enterprise).

[armand1m]

@mackenzie-orange thanks for commenting out! Just added it to the list and will work on it as soon as I can. Feel free to submit a pull request as well if you feel like contributing! =)

[from-nibly]

Also would love the signInWithEmailLink