Add binding for MagickStripImage

[davidwilemski]

Per the API docs, this should strip all profiles and comments attached to the image. This can be useful for removing identifying information from an image (e.g. EXIF tags).

[davidwilemski]

I saw a comment that tests are not required given that most of this is a light wrapper. If there's a test pattern you'd prefer me to use, I can definitely add one.

FWIW I built a very simple program depending on this branch's version of magick_rust and verified that it stripped my image as expected:

use magick_rust::{MagickWand, magick_wand_genesis};
use std::sync::Once;

static START: Once = Once::new();

fn strip_image(path: &str) {
    let wand = MagickWand::new();
    wand.read_image(path).unwrap();
    wand.strip_image().unwrap();
    wand.write_image(&format!("new-{}", path)).unwrap();
}

fn main() {
    let mut args = std::env::args();

    // skip binary name
    args.next();

    // image file to strip
    let path = args.next().unwrap();

    strip_image(&path);
}

[nlfiedler]

Thanks, David. I think unit tests would be overkill for anything that is little more than a function call. If it were more complex, then I think it would be worthwhile. Of more value would be code examples, although we would need lots of them because there are so many ways to use ImageMagick.