Resource costs should have a per-use cost value.
Submitted by Lincoln Phipps
Link to original bug (#138936)
Description
Costs are calculated as M x X where X is the cost/unit of time and M is a time period. This should have a per-use value (C) too which is invariant of the time, thus,
(MX) + C
This'll be added when a resource is used no matter what its utilisation or task duration. Mainly used as a "call-out" charge if its a human resource or as a mininum hire charge if its a bit of equipment.