How to build a NuGet package with C++ libraries for Windows Phone 8?

Question

C++ / C#

There is a ready C++ library (four files: .lib, .pdb, .dll, .winmd) for ARM and Win32 architectures in Debug and Release. You need to combine these files into a NuGet package, which can then be installed in a Windows Phone 8 app written in C#. How can this be done?