set file ownerships and permissions

Stefan Schuermans Stefan Schuermans ignore return value of lchown fow now (for Ubuntu 18.04 compile) ec5b95d @ 2020-09-19 10:11:44
..
config add copyright & license 2020-09-17 19:23:53
trees add copyright & license 2020-09-17 19:23:53
CMakeLists.txt implement chown/chmod 2020-08-23 12:37:57