Implement Single Detector Triggers
Currently the SPIIR pipeline only supports detections with two (or more) active detections. If a peak in the SNR is found satisfying our thresholds, but only one detector is active, a single detector trigger cannot be produced. Given approximately a third of the dtections from O3 were found by single detector triggers(?), this represents a non-trivial amount of potential detections that SPIIR would be missing out on.
This change likely requires a new method to calculate backgrounds and estimate false alarm rates.