[IMP] energy_selfconsumption: invoicing acquired power

Trello cards:

• [A3] Facturació quotes recurrents per potència adquirida (contractes)
• [A3]-[A4]-[A5] UX-UI CONFIGURACIÓ FACTURACIÓ RECURRENT
• Incloure camp "Distribuidora" a la Fitxa de Projecte

Changelog

• [IMP] energy_project: added kw uom data. (Manually activation of UOM must be checked in general settings)
• [IMP] energy_selfconsumption: added contract, contract_variable_quantity, contract_queue_job and l10n_es dependency.
• [IMP] energy_selfconsumption: wizard for defining the invoicing mode of the project.
• [IMP] energy_selfconsumption: wizard for generation of contracts.
• [IMP] energy_selfconsumption: added reseller field to self-consumption project.
• [IMP] energy_selfconsumption: added smart button to self-consumption view to show contracts on active state

energy_selfconsumption/wizards/define_invoicing_mode_wizard.py

@@ -29,12 +29,14 @@ class ContractGenerationWizard(models.TransientModel):
     recurrence_interval = fields.Integer(
         default=1,
         string=_("Invoice Every"),
+        required=True,
         help=_("Invoice every (Days/Week/Month/Year)"),
     )
     recurring_rule_type = fields.Selection(
         RULE_TYPE_OPTIONS,
         default="monthlylastday",
         string=_("Recurrence"),
+        required=True,
         help=_("Specify Interval for automatic invoice generation."),
     )
     selfconsumption_id = fields.Many2one(