[Feature] Provide your own OAuth provider

[kmcgill88]

I was wondering if there are any plans to add support for providing different OAuth providers. I see things default to Google now.

OAuth could be extracted to an abstract class similar to MetaStore and PackageStore and passed in.

If I took a stab at it would the project be open to merging?

[kmcgill88]

Made a draft pr to get some feedback. #89

[talisk]

I was wondering if there are any plans to add support for providing different OAuth providers. I see things default to Google now.

OAuth could be extracted to an abstract class similar to MetaStore and PackageStore and passed in.

If I took a stab at it would the project be open to merging?

Of course. If there's a stable custom auth provider support, please fell free to open PR. Welcome contributing.