Add Flexi Leave category in MSVacation.

Currently the holiday list is strictly tied to the country of work. This includes things like Bank holidays but also festival related holidays.

If someone from India (for example) working in UK, wants to celebrate a certain important holiday(like Holi, Diwali), they have to avail Annual Leave but get 4-5 days of holidays for Christmas.

Traditional holidays which are of high value to other countries/ regions should be added as part of the Flexi holiday list. Employees should get at least 2-3 flexible holidays in an year. These could be chosen from a list a predetermined holidays across the globe.

This promotes Microsoft's core priority of Diversity & Inclusion and also aligns with OneMicrosoft.