Observe that the absorbers photon hit collection is NULL, so thats why we get the seg fault
Fixed the abosrber photon hit correction. Now only we are generating way too many of them
Fixed Absorber Photons by removing phton hits, merging back to GS20 branch
Using the stacking action to count the number of photon's generated. Will then add hooks into the analysis class
Changed the number of photons generated to be calculated in the stacking action