Mark if Work Order or Plan is billable

DBC-1975

The user can specify if the Work Order Plan is Billable.

When selected - WO based on this WOP will be marked as Billable. It will take automatically Customer No. from the Asset.

If there is no any - this field will be blank.

Billable on Work Order can always be changed, and the Bill-to Customer No. also can be changed if it is necessary.

The user can also specify if the WO will be Billable or not (with choosing the Bill-to Customer No.) on the Planning Worksheet.