[IMP] Optimize orderpoint stock get + traversal of procurement subtraction + change edi format test date_planned to datetime

[IMP] Make sure dropship route can be chosen (takes prio)
[IMP] Add stock_calendar module and adapt the resource module to contain some necessary changes

Update views for date_to on calendars

[IMP] Will add a date_to in the calendar attendance and date_from and date_to should be applied/ check backwards also
[IMP] get_attendance_for_weekday will pass date instead of weekday

[IMP] should assign correct procurements in run
[IMP] Add group on leave

[IMP] interval_remove_leaves everywhere instead of interval_remove_leaves_groups once

[FIX] Add cr, uid in test
[IMP] Clean and inherit purchase and delivery dates + message_post one by one + float_compare in orderpoints

[FIX] Message_post happens one by one and add test for next delivery date

[IMP] Add float_compare in orderpoint confirm

[FIX] Typo