I'm working on a plugin that creates an image sprite out of a series of image files. In the old version of component, I accomplished this in a really hacky way that I'd like to avoid.

When I say "hacky", I mean I had to do 2 things. First, I generated the relevant CSS and injected it via builder.addFile. Then, I generated the image in a temp directory, then copied it to where it "should" be. (ie: calculated the destination based on what are likely internal APIs/properties)

Right now, my component.json files look like: (I'm open to changing this to make things easier)

{
    "name": "something",
    "sprite": [
        "images/*"
    ]
}

The end-result is a sprite.png and sprite.css that are added to this particular component's manifest. In this new builder, is there any way that a plugin can add/remove files in the build itself?