dev(narugo): add star censor demo, test skip

from PIL import Image

from imgutils.operate import ImageBasedCensor, register_censor_method

from imgutils.operate import censor_areas

from plot import image_plot

if __name__ == '__main__':

    register_censor_method('star', ImageBasedCensor, images=['star.png'])

    image = Image.open('genshin_post.jpg')

    censor_img = Image.open('star.png')

    areas = [

        (967, 143, 1084, 261),

        (246, 208, 331, 287),

        (662, 466, 705, 514),

        (479, 283, 523, 326)

    ]

    image_plot(

        (image, 'origin'),

        (censor_img, 'censor_img'),

        (censor_areas(image, 'star', areas), 'star_censored'),

        columns=3,

        figsize=(10, 4),

    )