[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/views/res_config_settings_extension.xml

@@ -9,15 +9,15 @@
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div
           class="app_settings_block"
-          data-string="Distribuidoras Eléctricas"
-          string="Distribuidoras Eléctricas"
+          data-string="Energy Distributor"
+          string="Energy Distributor"
           data-key="energy_project"
         >
                     <div
             style="display: flex; justify-content: center; align-items: center; height: 100vh;"
           >
                         <button
-              string="Ver Distribuidoras Eléctricas"
+              string="See Energy Distributors"
               type="object"
               class="btn-link btn-lg btn-primary"
               name="button_open_distributors"