Visual Studio 11 2012

Removed. This once generated Visual Studio 11 2012 project files, but the generator has been removed since CMake 3.28. It is still possible to build with the VS 11 2012 toolset by also installing VS 2015 (or above) and using the Visual Studio 14 2015 (or above) generator with CMAKE_GENERATOR_TOOLSET set to v110, or by using the NMake Makefiles generator.