I'm trying to create couple nuget packages for internal company use:
`OurCompany.Infrastructure.Logging.Interfaces` and just `OurCompany.Infrastructure.Logging`.

So I created two class library projects in the same solution, provided an implementation for `OurCompany.Infrastructure.Logging.Interfaces` and created a package.

Now I have a question: how to properly reference the `OurCompany.Infrastructure.Logging.Interfaces` library in `OurCompany.Infrastructure.Logging` project? 

Should I add it as a nuget package or simply add as a project reference?