Create new folder. If the -o, OUTPUT folder does not exist

[orithecapper]

Traceback (most recent call last):
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/PIL/Image.py", line 2390, in save
format = EXTENSION[ext]
~~~~~~~~~^^^^^
KeyError: ''

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/ori/.pyenv/versions/3.11.5/bin/vcsi", line 8, in
sys.exit(main())
^^^^^^
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/vcsi/vcsi.py", line 1647, in main
process_file_or_ignore(filename, args)
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/vcsi/vcsi.py", line 1621, in process_file_or_ignore
process_file(filepath, args)
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/vcsi/vcsi.py", line 1780, in process_file
is_save_successful = save_image(args, image, media_info, output_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/vcsi/vcsi.py", line 1140, in save_image
image.save(output_path, optimize=True, quality=args.image_quality)
File "/home/ori/.pyenv/versions/3.11.5/lib/python3.11/site-packages/PIL/Image.py", line 2393, in save
raise ValueError(msg) from e
ValueError: unknown file extension:

[mlnl221]

I opened up a PR for this here #134