Squashed 'CMakeModules/' changes from dd92677..e83ac80

e83ac80 Adds config installation to export_package.
10ad6e3 Adds export_package and PACKAGE args to def_*

git-subtree-dir: CMakeModules
git-subtree-split: e83ac8099e208c6e0e114d026ac1c9fb1edacee5
Merge commit 'c77c3db703f1024d5eb9f76402d8d363f5334e90'
Uses export_package.