[CAL-11]Modified the ROCThreshold processor by removing the uncessary things due to Mokka, modified the time smearing processor to perform a simple random gaussian smearing based on the xml steering parameter, remove all the TDC shift part
Created by: ebrianne
The ROC threshold has been modified by removing the unnecessary stuff duet to Mokka bug. The time smearing processor has been modified to simply smear the time with a gaussian (0., sigma) where sigma can be changed in the xml steering file