Provide user statistics

[tofuwabohu]

Hi, thanks for building this!

paperless-nginx provides /api/users and /api/groups which which would be interesting to monitor (mostly the numbers).

[hansmi]

Just like #39 this will/would require changes to the underlying Paperless-ngx client library.

[tofuwabohu]

But why? Since the API points are exposed already

[hansmi]

The API was exposed already, yes, but (my) client library didn't return the information. I've changed that now in hansmi/paperhooks@43b1b91.

[hansmi]

@tofuwabohu, I opened pull request #49. Do you want to review?

[tofuwabohu]

Oh, I misunderstood you with the library first. Thanks for clarification and adding it!

The example metrics look good to me, thanks again! I'm not able to review go code unfortunately.

[hansmi]

Thank you for your quick reply. I've merged #49 and it'll be part of the next release.