Create sort_by_dimension.py

[2hands10fingers]

# Description

Creates folders based off all the dimensions of every image in a directory and then sorts each image into their corresponding folder.

- [ x] New Script
- [ ] New Category (Is any new category being made to accomodate this script)
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)