Need to support Google OAuth2

[SteveMcArthur]

I think social-login needs to support Google's OAuth2 strategy - especially since the current OpenID strategy is due to be withdrawn in April. I'm not sure if simply inserting the strategy would clash with the current Google strategy or not.

[26medias]

Hi,

The package was built a while ago and not used since. Once work resumes on the parent project (around July), an upgrade of some of the dependencies will be required. In the meantime, I'm afraid it's as-is.