[IMP] energy_project: Adding reseller and supplier model

Implementation branch of these MR:

• !204 (merged)
• !203 (merged)

Changelog

• [IMP] energy_project: new model reseller
• [IMP] energy_project: new model supplier
• [IMP] energy_project: on load reseller and supplier from import assignate xml_id parsing from order field.
• [IMP] energy_project: added data for reseller on load (last update 13/09/2023 source)
• [IMP] energy_project: added data for supplier on load (last update 14/09/2023 source)
• [IMP] energy_project: access from res.config.setting to reseller and supplier
• [IMP] energy_project: unit testing for xml_id
• [IMP] energy_selfconsumption: added field reseller_id and supplier_id

Roadmap will do in implementation branch

• I18N (cat, es, eu and eng)

energy_project/models/supplier.py

@@ -7,7 +7,7 @@ class Supplier(models.Model):
 
     """
     The string values are in spanish so it can be identified by Odoo when importing directly the CSV downloaded from the CNMC.
-    This values can be still be translated without problem.
+    This values can still be translated without problem.
     """
     nif = fields.Char(string="NIF empresa")
     order = fields.Char(string="Nº de orden")