version 2, relabelling and keeping track of label

[Nestak2]

Version 2 of sort_folder script - sorting images in a folder into subfolders. The differences to the original are:

• the input is provided in the preamble of the python file, not typed into a console. Therefore, the script can also be run in a jupyter notebook
• additional functionalities:
  • "prev image", "next image" buttons
  • keeping track of sorting, so you can change the label you gave
  • in 'copy' mode there is an entry field, where you can enter the picture you want to go to

It is good to take note there are two sorting modes - 'copy' and 'move' of the sorted pictures:

• 'move' starts where you left off last time sorting, no 'go to #pic', works with number-buttons for labelling, no txt-file for tracking after closing GUI, memory savvy
• 'copy' starts always at beginning, has 'go to #pic', doesn't work with number-buttons, has a txt-for tracking the labels after closing the GUI