Add CMake 3.27 debugging support

The VS CMake team has been working in close collaboration with Kitware on developing a debugger for CMake scripts in the Visual Studio IDE (see this open Kitware issue for more details). We will be contributing this work back upstream (targeting the 3.27 release) so that the developer community can have it and work to improve it together, by adding new features and support for additional DAP capabilities.

https://devblogs.microsoft.com/cppblog/cmake-debugger-allows-you-to-debug-your-cmake-scripts-and-more/