Until now, only Eyropean tax numbers were taken into account. Now, Indian numbers are also considered valid and sent to IAP for link creation. This commit takes advantage of IAP changes, which now integrates the Indian GST tax number system. closes odoo/odoo#142082 X-original-commit: 1a1b9b27efda49fce6a61c0aeb8deb60e040771e Signed-off-by: Louis Baudoux (lba) <lba@odoo.com> Signed-off-by: Damien Decleire (deda) <deda@odoo.com>