Merge topic 'cygwin-patches'

4ef36a00 SystemTools: Remove Cygwin-specific file lookup optimization
63dbb0ca SystemInformation: Improve CPU info lookup on Cygwin
be39cd88 Glob: Use case-sensitive globbing on Cygwin

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !197