Calculate total DCR of array

[ricmperes]

One of the main issues with large SiPM arrays is the large total dark count rate (DCR) and, subsequently, larger S1 coincidence needed and accidental coincidence rate expected. A very useful improvement is to provide this information to the user, together with standard plots of the rate of coincident dark cont events vs coincidence level.

Would require:

• Add DCR value to SiPMunit classes
• Model the coincident event rate (function of coincidence window)
• (Use an ad-hoc model for AC? )