Use the custom non-standard work pattern set up in an employee record when calculating pro-rata salaries

When a custom non-standard work pattern is set for an employee where they do not work the same hours each day (eg they work 8 hours a day Mon - Thurs and 5 hours on a Friday), use this information to pro-rata their salary based on the hours worked, not just the days worked. This should be used for starters, leavers and for Statutory Payments.