Merge topic 'msvc-c17'

c5cc4ddac4 MSVC: Add support for C17
6561b032bc MSVC: Tolerate c_std_17 and c_std_23 features on older compiler versions
22f804e0ec MSVC: Refactor C compile features table for C90, C99, and C11

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Raul Tambre <raul@tambre.ee>
Merge-request: !6677