Major Changes In Testing

Resume functionality added back in it's primative form.
All upscaling-like applications now all are derived from the same "AbstractUpscaler" class, hoping this makes maintaining upscalers easier.
Auto deletes workspace after completion (can toggle this in the yaml)
Download externals from a static github repo (as opposed to having to re-upload them each release)
Prettier status bar
Re-added upscale folder functionality.
Gives an error if waifu2x failed to upscale a test image (should help debug user issues)
Gives descriptive error if file name is invalid (this is in the works)
Implemented 'rotations' functionality for videos with this ffprobe flag.
Being able to select config file

Known Bugs

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