Fixes "./../art/file.png" causing duplicates when used in multiple systems, even if it refers to the same file.
Remove debug messages for SVGResource and ImageComponent.
1. Original width/height were being returned as integers, even though they can be floats (see SVGResource::getImageSize()). Function also renamed to be more descriptive (renamed to getSourceImageSize()).
2. Now we always round height and scale width from the rounded height when doing scaling, since SVG rasterization scale is determined from height. This seems to fix some 1px cutoff I was seeing, but I'm not sure if it still works for images with extreme aspect ratios that are taller rather than wider.
Fixed buttons not being quite vertically centered.
Hooked up new switch graphics.
Updated slider logic to only move in multiples of the specified increment.
Should "just work" for any TextureResource::get("*.svg"). dynamic_cast it to an SVGResource and call rasterizeAt(w, h) if you need to re-rasterize it.
Only supports scaling that maintains aspect ratio.
