Error codes schema not aligned

[FabrizioMoggio]

Problem description
The error codes are not aligned with Commonalities

Expected behavior
align with Commonalities

Additional context
https://github.com/camaraproject/Commonalities/blob/main/artifacts/CAMARA_common.yaml
camaraproject/EnergyFootprintNotification#98 (comment)

[FabrizioMoggio]

Fixed with: #73