Allow Integral of Energy Deposition in World Only without Storing Hits

[Laurie Nevay]

Add option / facility to store the energy deposition integral in the world air without storing all the individual hits for the world edep.

[Laurie Nevay]

Implemented now in develop for the next release. Options will be

option, storeElossWorldIntegral=1; option, storeElossWorldContentsIntegral=1;

and you therefore don't specify storeElossWorld or storeElossWorldContents and the hits won't be written to disk, which would be a lot of information.