Fixes: #574
Changes ActorHost constructor to be public again. Now the state manager
and http interactor are set via properties. This means that code in unit
tests won't be able to cover the methods that interact with timers or
reminders - however this was already the case. Testing state management
is covered by replacing the `IActorStateManager` with a mock.
Logged an issue to improve this.
Also added validation. If you try to use something that's not fully
initialized it will result in an exception with a meaningful message
instead of a null reference.
Also skips tests that are failing due to #573. We know the cause of why
these are failing, and these tests have not been stable since they were
introduced. Failing additional CI builds is not giving us new
information.
Ryan Nowak
vinayada1
Aman Bhardwaj