Merge topic 'export-dependencies-unwind'

92b403fc62 install(EXPORT): Use UNWIND_INCLUDE in exported find_dependency()
bba78d656e FindDependency: Split up macro to allow for no_return variant

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !10968