build: indicate the build byproducts for PythonKit (#1057)
build: indicate the build byproducts for PythonKit (#1057)

Ensure that CMake is aware that the import library is a build byproduct
so that it knows how to wire up the dependencies.  This should repair
the Windows build.
tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis