Add node_modules, .DS_Store to .gitignore
"resources" folder with original NGS SVG artwork

[#65297336]
SlimerJS script for cropping SVG images to size

[#65297336]

Need to run 'svgo' on each image before *and* after.
optimize all the SVG resources before cropping

[#65297336]

(svgo, default settings)
crop all svg images using SlimerJS script

[#65297336]
reoptimize cropped images

[#65297336]
Execute, not evaluate, the loop in createWastePond
svg (and some png) images for fracking model
Use NGS artwork for fracking well and pond
Make sure dirtying the pond still works
Start using NGS palette (w/o gradients)