Namely, in DataStreamPublisher and PubSubServer. This is part of a broader
paradigm shift towards Dependency Injection and Factory Pattern.
https://learn.microsoft.com/en-us/dotnet/core/extensions/dependency-injection-guidelines
* Use interfaces to decouple services:
- Decouple ManagedSubscriber from ISubscriberCore impl
- Decouple PubTableBroker from IPublisherCore impl
- Decouple RemoteQueryManager from IManagedSubscriber, IPubTableBroker impl
* Rename Publishers -> PublisherNodes in DataStreamPublisherConfig
* Model config profiles after dotnet appsettings
- Rename Configurations/<name>.json -> appsettings.<name>.json
- Make json fields match corresponding csharp props verbatim
* The Dependency Injection framework doesn't support JsonPropertyName
attributes. Config class props must match json fields verbatim.
* Move reusable startup code into new Bts.Extensions.Hosting proj
* Add pubsub and md-publisher services to compose.yaml
John Colvin