DevOps Level -5: Create a helm chart for Odoo

[allilou]

1. Group all Odoo deployment files in a helm chart folder structure
2. Populate values.yaml with some important variables
3. Push the file to a Github repository
4. Write a Github Workflow to push the Chart to ghcr.io
5. Add a README (markdown) file to explain how to deploy the chart using OCI protocole

Acceptance criteria:

• I shoud be able to access Odoo homepage from my browser after following all the instructions provided in the README file.