Make date_before_or_equal and date_after_or_equal

[RomainLanz]

Hey! 👋🏻

We currently only have rules like date_before or date_after that strictly enforce that a date is before or after a specific date.
Adding a variant that ensures the same thing but includes the current date would be beneficial.

One use-case is if you are creating an Extending Date field. The date must be the same or after.
The current workaround is to take the current date and remove/add one day.