Merge topic 'msvc-runtime-library'

fb3370b6a1 MSVC: Add abstraction for runtime library selection
f621e7fa5d VS: Fix Fortran runtime library flag map special case for '-' options

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Acked-by: Leonid Pospelov <pospelovlm@yandex.ru>
Merge-request: !3211