helper module to find OSX frameworks
This module reads hints about search locations from variables:
CMAKE_FIND_FRAMEWORK_EXTRA_LOCATIONS - Extra directories
© 2000–2016 Kitware, Inc.
© 2000–2011 Insight Software Consortium
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/module/CMakeFindFrameworks.html