setHighDensityDisplayEnabled() not working with CMake

Hi!

I was working on adding CMake support to the Cinder-NanoVG block when I noticed that setHighDensityDisplayEnabled() was not working for the CMake xcode project. I created a simple sample to illustrate the issue. I’ve spent some time looking through the generated xcode project and the one that works that was modified from the HelloWorld sample. I have not yet figured out the cause of the issue, so I figured I would ask here to see if anyone else may have any insight on this. Thanks!

CMake generated Xcode project (not working):

Xcode project (working):