[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/data/contract_line_qty_formula_data.xml

+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <data>
+        <record id="power_acquired_formula" model="contract.line.qty.formula">
+            <field name="name">Power Acquired Formula</field>
+            <field name="code">
+days_timedelta = contract.next_period_date_end - contract.next_period_date_start
+if days_timedelta:
+  # Add one so it counts the same day too (month = 29 + 1)
+  days_between = days_timedelta.days + 1
+else:
+  days_between = 0
+result = contract.supply_point_assignation_id.distribution_table_id.selfconsumption_project_id.power * contract.supply_point_assignation_id.coefficient *  days_between
+            </field>
+        </record>
+        <record id="energy_delivered_formula" model="contract.line.qty.formula">
+            <field name="name">Energy Delivered Formula</field>
+            <field name="code">
+days_timedelta = contract.next_period_date_end - contract.next_period_date_start
+energy_delivered = 0
+if days_timedelta:
+  # Add one so it counts the same day too (month = 29 + 1)
+  days_between = days_timedelta.days + 1
+else:
+  days_between = 0
+if 'energy_delivered' in context:
+  energy_delivered = context['energy_delivered']
+result = energy_delivered * contract.supply_point_assignation_id.coefficient *  days_between
+            </field>
+        </record>
+        <record
+      id="energy_delivered_variable_formula"
+      model="contract.line.qty.formula"
+    >
+            <field name="name">Energy Delivered Variable Formula</field>
+            <field name="code">
+result = 0
+            </field>
+        </record>
+    </data>
+</odoo>