Split out Orleans as separate project.

[dzmitry-lahoda]

After split, may be propose it to migrate into https://github.com/OrleansContrib .
Orleans goes into ASP.NET Core deep integration, so may propose to main repo either.

[Kimserey]

Hey @dzmitry-lahoda thanks a lot for the interest.

I guess OrleansContrib would be a good place to put an extension for having a orleans aspnet core health check.

Also at the point when I created this library, ASP.NET Core did not have any health check library as part of the core library (nor any external nuget package) but since it does now, I guess we should base the healtcheck on the interfaces provided by ASP.NET Core 2.2.

I'll split up the healthcheck to a separate repository first and we can carry the conversations over there.

[dzmitry-lahoda]

i see. ok. another issues is to separate interface of grain into separate assembly.