Add sample mask example about texture-synthesis HOT 7 CLOSED

use texture_synthesis as ts;

// painting into the 1.jpg image, with the shape given by 3_inpaint.jpg, using pattern of 2.jpg
fn main() -> Result<(), ts::Error> {
    let texsynth = ts::Session::builder()
        .inpaint_example(
            &"imgs/masks/3_inpaint.jpg",
            ts::Example::builder(&"imgs/1.jpg").set_sample_method(ts::SampleMethod::Ignore),
            ts::Dims::square(400),
        )
        .add_example(ts::Example::builder(&"imgs/2.jpg").set_sample_method(ts::SampleMethod::All))
        .build()?;

    let generated = texsynth.run(None);
    generated.save("out/09.jpg")
}