added resources for Icon

Merge branch 'spm'

converting to SPM

splitting the reusable bits out into a separate SPM package

it works!

making the plugin work

Tahoe problems checkpoint

converting to SPM

cleaning up shaders

fixed typo;

Started writing documentation

fixed debug video playback issue

more fixes for single-stepping with videos and args, fixed the image scaling problem so debug works for distortion effects, split filter93 to separate distortion effects

removed webcam support. fixed single stepping (maybe)

making video playback work again