Setup the Skeleton for new users

[vincent-peugnet]

• https://www.fr.linuxfromscratch.org/view/blfs-1.0-fr/postlfs/skel.html
• https://fr.wikipedia.org/wiki/Skel

This system allows to configure the default files and folder and their permissions.

[n-peugnet]

Moved to https://forum.club1.fr/d/29