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
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src add copyright & license 2020-09-17 19:23:53
CMakeLists.txt finish binaries, add readme 2020-09-17 19:19:25