Update to upstream

[ericgaspar]

• Upgrade to upstream v.0.29.2
• Add restore, upgrade, backup scripts
• Files are now visible
• Add README_fr

PR Status

• [x] Code finished.
• [x] Tested with Package_check.
• [x] Fix or enhancement tested.
• [x] Upgrade from last version tested.
• [x] Can be reviewed and tested.

Package_check results

[alexAubin]

Leeeeet's yolomerge ! Thanks for the work and sorry for the delay !