[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_views.xml

+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <data>
+        <record id="view_res_config_settings_view_form" model="ir.ui.view">
+            <field name="name">res.config.settings.view.form.inherit.reseller</field>
+            <field name="model">res.config.settings</field>
+            <field name="inherit_id" ref="base.res_config_settings_view_form" />
+            <field name="arch" type="xml">
+                <xpath expr="//div[hasclass('settings')]" position="inside">
+                    <div
+            class="app_settings_block"
+            data-string="Energy Project"
+            string="Energy Project"
+            data-key="energy_project"
+          >
+                        <h2>Resellers</h2>
+                        <div
+              class="row mt16 o_settings_container"
+              name="reseller_setting_container"
+            >
+                            <div
+                class="col-12 col-lg-6 o_setting_box"
+                id="active_reseller_setting"
+              >
+                                <div class="o_setting_right_pane">
+                                    <span class="o_form_label">
+                                        Resellers
+                                    </span>
+                                    <br />
+                                    <button
+                    name="energy_project.reseller_act_window"
+                    icon="fa-arrow-right"
+                    type="action"
+                    string="Manage Resellers"
+                    class="btn-link o_web_settings_access_rights"
+                  />
+
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </xpath>
+            </field>
+        </record>
+    </data>
+</odoo>