[IMP] account: check access right before posting invoice
[IMP] account: check access right before posting invoice

This commit ensure the user have to minimum rights to post invoices
The 'Post' button was already hidden but the post() method is public

Task : 2206969

X-original-commit: 28ae3fb5366d61d3f5f9067cda962b047105199e
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo