Adds Kenyan payroll localization so businesses operating in Kenya can manage payroll rules, contracts, payslips, and related accounting in Odoo. This helps employers calculate local payroll elements more consistently and provides country-specific reports and demo data for setup.

Sign requests can now be sent to recipients in a defined sequence, so later signers are only notified when earlier signers have completed their part. This supports HR and other approval flows where documents must be reviewed and signed in a specific order, while still allowing people at the same step to sign in parallel.

[IMP] sign: send and sign sign requests in order

add a checkbox "sent order" that allow user to define an order in the recipient
system take the lowest number, send him the file to sign.
When it's signed, warn the new recipients in numerical order.
If two recipients have the same number, they receive the sign request at the same moment.
And when both of them have signed, the next level (if any) is warned.
When the biggest number have signed, process is complete

taskid: 2582202