[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_view.xml

@@ -21,7 +21,7 @@
                 />
                                 <field
                   name="price"
-                  string="kWn Price per day (€/kWn/dia)"
+                  string="kWn Price per day (€/kWn/day)"
                   attrs="{'invisible': [('invoicing_mode', '!=', 'power_acquired')]}"
                 />
                             </group>