Add extra screenshot
Updates to the not geotagged section of the program

Moved the code for the not geotagged window and results to their own
file, not_geotagged.py
Completely changed the results to show a list of checkboxes with the
filenames next to them instead of text in a text edit. Checking the
boxes will ignore those photos in future searches.
Added a new screenshot showing the new version of the not geotagged
result