Log Message:
cmake: updated to 3.16.1

CMake 3.16.1
* bootstrap: Add target_link_options command
* Check for support before adding bigtoc linker flag
* TestDriver: ignore strcpy call
* FindThreads: Restore hard-coded '-l' flag on library name
* PCH: Do not add #pragma system_header for Xcode generator
* Unity/PCH: Skip more target types when adding automatic sources
* Unity: Generic source file handling for all generators
* Unity: Proper handling of object libraries
* PCH: Use the target's PREFIX for building the pdb file name
* CTest Resource Allocation: Add test for spec file with no version
* FindwxWidgets: Add support for 3.1.3 on macOS