Merge topic 'ep-refactor-scripts' 5fbac2bb24 ExternalProject: Move inline scripts to separate files 8feaa41ee9 ExternalProject: Ensure _ep_set_directories records cmake paths 036517fe0b ExternalProject: Move existing step scripts to separate subdirectory Acked-by: Kitware Robot <kwrobot@kitware.com> Tested-by: buildbot <buildbot@kitware.com> Merge-request: !6888