Check for saturating counts when extracting pulses

[ngreenwald]

Is your feature request related to a problem? Please describe.
The current tiff extraction pipeline uses the number of ion hits as the value in each pixel in each tif. However, when there are saturating levels of counts, this metric is no longer an accurate representation of the true signal.

Describe the solution you'd like
In situations where counts are too high, we should use the pulse height as the readout. This is rare, but when it does happen, it would be important to flag. We should add in logic during extraction to check if this condition is met.