Addition of analysis of non-FISH signal in regions defined by FISH signal

[vreuter]

• Use final step initially developed for DNA DSB project
• Keep 1 row per spot, 1 column group per molecule of interest, 1 column per group for each measurement (e.g., mean and standard deviation)
• Use, by default, just the central plane +/- 1 $z$-slice
• Addition of fine drift correction for single (often initial) timepoint in which nuclei are imaged (now along with IF against proteins of interest)
• Do this also for regional spots, in addition to obviously the locus-specific ones