Basic Slovene Localization

Miscellaneous utilities and fixes to the Accounting module for Slovenia.

Features

• Adds Date of service (slo. Datum storitve) field to the invoice report, as required by Slovenian legislation.
• Adds VAT date (slo. Datum za DDV) field to invoices and bills, mapped to taxable_supply_date. This is the date, when the VAT is deducted (Bills) or charged (Invoices)
• Makes the Accounting date always visible on invoices and bills. This is the Date of service (slo. Datum storitve)
• KIR/KPR XML export (Accounting → Reporting → KIR/KPR XML Export): generates a DDV_KIR_KPR XML file for submission to eDavki. Select a VAT period; the report aggregates posted invoice data by VAT date and produces a standards-compliant XML file.