Add the option to create videos for stuff

[twilligon]

• Add --resolution flag taking the form of <width>x<height>, default could be 1920x1080
• Don't use moviepy because there are too many dependencies and we already have an FFMPEG for Issue Use FFMPEG for audio/video conversions #17
• The videos could be random like 20th century tumpet & Trumpet Tylenol or in a set grid (even with custom videos in the middle maybe?) like Smooth McGroove's
• Perhaps finish Shitpost Studio and make a GUI for this

[twilligon]

Auto-downloads FFmpeg when needed now. Conveniently, I already have PIL, albeit with no image libraries compiled in on Windows. Export something simple like TGA?.

[twilligon]

Or create a plugin for various DAWs or video editing things instead of a homebrew GUI