[general] Removed executable flag from library files

All python files except from scripts are not executable
anymore.
7 jobs for cuda_runtime in 67 minutes and 25 seconds (queued for 10 seconds)
Status Name Job ID Coverage
  Build
passed build_linux_27 #143136
docker

00:07:31

59.0%
passed build_linux_36 #143137
docker

00:07:31

59.0%
passed build_macosx_27 #143138
macosx

00:13:51

59.0%
passed build_macosx_36 #143139
macosx

00:12:39

59.0%
 
  Docker
passed docker_linux_27 #143161
docker-build

00:17:20

70.0%
passed docker_linux_36 #143141
docker-build

00:34:19

70.0%
failed docker_linux_27 #143140
docker-build

00:34:00

70.0%