Merge topic 'tests-FindPkgConfig'

fc8f8d82f2 Tests: Disable parts of FindPkgConfig tests without wide supported
96d7b5a6d1 Tests: pkg_check_modules() doesn't allow spaces in a moduleSpec
afd1b28cea Tests: Disable broken FindPkgConfig test cases for Windows

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !7847