CAMT Format Bank Statements Import

This module adds CAMT as a supported bank statement file format in Odoo's bank statement import wizard. When you import a statement, the wizard now accepts CAMT.053 and CAMT.054 XML files, as well as ZIP archives containing several CAMT files.

• The import screen lists CAMT and zipped CAMT as available formats.
• The module reads the file, checks that it is a valid CAMT file, and extracts the account number, currency, opening balance, closing balance and each transaction.
• For every transaction it fills in the date, amount (positive for credits, negative for debits), payment reference, partner name and partner account number when present in the file.
• It builds a detailed narration text from the file, including references, return reasons, mandate IDs, cheque numbers, postal addresses and transaction type codes.
• If a statement entry contains several transaction details, each one becomes a separate transaction line.
• If the file is a ZIP, every CAMT file inside is read and all transactions are combined.

It works together with the bank statement import feature and the account.journal model, which is where the list of available import formats is defined. No new menus are added; the functionality appears inside the existing bank statement import wizard.