Create meta-packages to bring built in NuGet dependencies

We need to discuss the granularity, but we should provide meta-packages (tracking the runtime version) to bring the appropriate dependencies available as shared assemblies, which will make the local development process simpler.

Start by reviewing the requested meta-package granularity and how the host tracks runtime versions and shared NuGet assemblies. Identify the repository's dependency and packaging entry points, then define which runtime-specific packages are needed and how local development should consume them. Done means the package boundaries and dependency behavior are agreed and implemented.

Written by the indexing model from the issue text.