Initialize capacities

🚩This button appears at contextual menu on the resource modification screen. This button resets all resource capacities to zero, before or after a defined date. A window appears with two fields to fill in: - Initialize capacities : Before the (The capacity of this resource will be set to 0 for all periods before the date you have selected) or After the (The capacity of this resource will be set to 0 for all periods after the date you have selected) - Initialization date Choose the initialization date for this resource. Example: if I choose Before the and the date of 01/01/2020then all the capacities of my resources before the 01/01/2020 will be equal to 0. Capacities after the 01/01/2020 change.