* Fix permissions during build of bbb-libreoffice-docker
The scripts must be executable by anyone. They are owned by root and
executed by user bigbluebutton.
* Fix permissions during build of bbb-html5
The files must be readable by mongodb. There are no secrets in the file,
so it is safe to be readable by anyone.
* Fix permissions during build of bbb-record-core
Files must be readable by user bigbluebutton.
* Fix more umask issues
Recording scripts were not executable in the builds
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Co-authored-by: Daniel Schreiber <daniel.schreiber@hrz.tu-chemnitz.de>