Add code for parameter loop feedback from SD
This adds feedback of the results of the strobe delay analysis so that the updated value will be saved in the configuration output.
In theory this should be generic enough to handle a few different kinds of feedback, but the division between StarParamFeedback (receives a histogram with chip level values) and StarChannelFeedback (currently only the per strip trims) is somewhat arbitrary, and they probably could be merged.
The other small caveat for later is that the output configuration will include changes from running the scan, but that shouldn't hold anything up.