Adds BatchTaskProgressPanel, a augmented/specialized version of
MultiTaskProgressPanel that uses CollapsiblePanel to allow tracking of
batches of related tasks using SwingWorkers

Adds CollapsiblePanel, which is just a JPanel that is collapsible

Adds MultiTaskProgressPanel. This is a Swing component usable for
monitoring background tasks similar to the way ProgressMonitor works,
but instead of opening a dialog for each tasks, it displays them like a
browser download manager

Adds a collapsible version of a JPanel, useful in various places

Cleanup somethings related to token splitters

Cleanup pass to uniformize things

Finished extracting the old version of esodata, and fixed all the local
issues

utils.data now lives in the esodata project; not in this one