A new Cambodia reporting module adds core financial statements and a WT003 withholding tax export. This helps Cambodian businesses meet local reporting needs directly in Odoo with localized balance sheet, profit and loss, and tax export support.

Adds basic reporting module for Cambodia, including:
- Balance sheet
- Profit & loss
- WT003 export

task-4383330

Forward-Port-Of: odoo/enterprise#91592
Forward-Port-Of: odoo/enterprise#89831