title: Built-in dependency injection with conventions
body: <p>How to inject services without registering them?
  I mean in the past some DI frameworks automatically registered <code>Service</code> for <code>IService</code>.</p>
  
  <p>I'm in a situation where I have a dozen of services and basically registering every single one is a pain in the ass. so is this supported in asp.net core default DI framework?</p>