title: Including submodule .xcdatamodeld file in project
body: <p>I am currently building multiple applications that all share the same CoreData stack. This includes models, network requests, etc. Basically all of the business logic is held in this repository (let's call it DataKit). The DataKit project generates a static library called DataKit.a</p>
  
  <p>Now I have two apps, App A and App B. Both of them need to include the .xcdatamodeld in DataKit. How I have done this in the past, is to copy the .xcdatamodeld file from DataKit and put it into the App A or App B project. This is really ugly and I am trying to figure out a cleaner way to include the .xcdatamodeld file without having to copy it into the App project. </p>
  
  <p>I've tried adding the .xcdatamodeld file to a Copy Files phase in the Build Phases for DataModel.a but it didn't work. </p>
  
  <p>Anyone have any suggestions/tips?</p>