Feature Request: TrackMate Batcher - Clear input images button

[BrentonCavanagh]

This is just a simple suggestion to improve the usability of the TrackMate Batcher.

Currently the only way to remove previous input images from the processing list is to remove them one at time but when you have 200+ images in the list this is not a trivial task. I have since then found that the easiest way is to simply delete ".trackmate\trackmatebatchersettings.json".

Having a Clear all button for the input images would be great and much appreciated if you can find the time.