Convert a model list from the non-repetitive format that we get from the C code to the repetitive format that is more useful for plotting.
ConvertModelList(model.list)
List from PeakSegJointHeuristic(...) or PeakSegJointSeveral(...).
List of data.frames: segments has 1 row for each segment mean, sample, and model size (peaks, sample.id, sample.group, chromStart, chromEnd, mean); peaks is the same kind of data.frame as segments, but with only the second/peak segments; loss has one row for each model size; modelSelection has one row for each model size that can be selected, see exactModelSelection.