This PR makes three of the invoicing tour steps optional so that avoiding one doesn't break the flow of the tour anymore. It also entirely removes the step for changing the sequence of invoice as it's an advanced feature task id #2368759 closes odoo/odoo#62553 X-original-commit: 597f7581e3150cbbd9b6906c55f2fa7edb5fddcd Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com> Signed-off-by: Nicolas Viseur <vin-odoo@users.noreply.github.com>