New in version 3.15.
Visual Studio managed project imports
Adds to a generated Visual Studio project one or more semicolon-delimited paths to .props files needed when building projects from some NuGet packages. For example, my_packages_path/MyPackage.1.0.0/build/MyPackage.props.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/prop_tgt/VS_PROJECT_IMPORT.html