[IMP] energy_selfconsumption: importation of selfconsumption inscriptions, supply points and distribution tables by CSV

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Changelog

• [IMP] energy_selfconsumption: Added wizard to import self-consumption inscriptions and supply points
• [IMP] energy_selfconsumption: Added wizard to import distribution tables
• [IMP] energy_selfconsumption: Added two attachments to be downloaded from the wizard as templates. The attachments are public and can be downloaded by anyone without login.
• [IMP] energy_selfconsumption: Added attachments to be downloaded from the wizard of selfconsumption import with list of all Spanish state codes.
• [IMP] energy_selfconsumption: Added field partner_id in supply points to indicate partner that has to be subscribed to the project.
• [IMP] energy_selfconsumption: SQL constraint to assure that a supply point code is unique for every company (can be same code for different companies)
• [IMP] energy_selfconsumption: updated security rules for only admins to be able to import.
• [FIX] energy_project: removed required of inscriptions to be able to remove them.
• [FIX] energy_project: inscription set on delete to cascade to remove them when deleting project.
• [FIX] energy_selfconsumption_cooperator: removed field cooperator_id and inheritance in views as this field function is implemented in the main module for the new field partner_id

energy_selfconsumption/models/supply_point.py

-from odoo import fields, models
+from odoo import fields, models, _
 
 
 class SupplyPoint(models.Model):
@@ -6,9 +6,20 @@ class SupplyPoint(models.Model):
     _description = "Energy Supply Point"
     _inherit = ["mail.thread", "mail.activity.mixin"]
 
+    _sql_constraints = {
+        (
+            "unique_code_company_id",
+            "unique (code, company_id)",
+            _("A supply point with this code already exists."),
+        )
+    }
+
     name = fields.Char(required=True)
     code = fields.Char(string="CUPS", required=True)
-    owner_id = fields.Many2one("res.partner", string="Owner", required=True)
+    owner_id = fields.Many2one("res.partner", string="Owner", required=True,
+                               help="Partner with the legal obligation of the supply point")
+    partner_id = fields.Many2one("res.partner", string="Partner", required=True,
+                                 help="Partner subscribed to the self-consumption project")
     company_id = fields.Many2one(
         "res.company", default=lambda self: self.env.company, readonly=True
     )