[IMP] energy_selfcomption: adjustment of invoicing configurations

Trello Card

Changelog

• [IMP] energy_project: add energy kW uom
• [IMP] energy_selfconsumption: add dependency l10n_es (we use some account in the product creation)
• [IMP] energy_selfconsumption: add dependency contract_queue_job
• [IMP] energy_selfconsumption: remove unneeded dependency contract_invoice_start_end_dates
• [IMP] energy_selfconsumption: assign account income (7050) to energy product
• [IMP] energy_selfconsumption: rename holder to owner in invoicing description
• [IMP] energy_selfconsumption: generate a contract for PSA instead of grouping by owner and parter pair
• [IMP] energy_selfconsumption: set product sale only
• [IMP] energy_selfconsumption: set tax service 21% IVA to product
• [IMP] energy_selfconsumption: set uom kW to product
• [IMP] energy_selfconsumption: set type service to product