Adds new Belgian payroll export capabilities so companies can send payroll-related work entry data to social secretariats such as Group S, Partena, and UCM. This reduces manual preparation work and helps Belgian payroll teams exchange data with external providers more efficiently.

Adds a new Lebanon localization package with a ready-to-use chart of accounts, tax definitions, and fiscal positions. This helps companies operating in Lebanon configure accounting more quickly and align their Odoo setup with local requirements.

Link to task: [#3927914](https://www.odoo.com/web#model=project.task&id=3927914)

Added base localization package with chart of accounts, taxes, and fiscal positions for Lebanon 🇱🇧