simplify PostprocessBatchListArgs

            if p.scripts is not None:

                p.scripts.postprocess_batch(p, x_samples_ddim, batch_number=n)

                batch_params = scripts.PostprocessBatchListArgs(

                    list(x_samples_ddim),

                    p.all_prompts[n * p.batch_size:(n + 1) * p.batch_size],

                    p.all_negative_prompts[n * p.batch_size:(n + 1) * p.batch_size],

                    p.seeds,

                    p.subseeds,

                )

                p.prompts = p.all_prompts[n * p.batch_size:(n + 1) * p.batch_size]

                p.negative_prompts = p.all_negative_prompts[n * p.batch_size:(n + 1) * p.batch_size]

                batch_params = scripts.PostprocessBatchListArgs(list(x_samples_ddim))

                p.scripts.postprocess_batch_list(p, batch_params, batch_number=n)

                x_samples_ddim = batch_params.images

                p.prompts = batch_params.prompts

                p.negative_prompts = batch_params.negative_prompts

                p.seeds = batch_params.seeds

                p.subseeds = batch_params.subseeds

            def infotext(index=0, use_main_prompt=False):

                return create_infotext(p, p.prompts, p.seeds, p.subseeds, use_main_prompt=use_main_prompt, index=index, all_negative_prompts=p.negative_prompts)

class PostprocessBatchListArgs:

    def __init__(self, images, prompts, negative_prompts, seeds, subseeds):

    def __init__(self, images):

        self.images = images

        self.prompts = prompts

        self.negative_prompts = negative_prompts

        self.seeds = seeds

        self.subseeds = subseeds

class Script:

        You can modify the postprocessing object (pp) to update the images in the batch, remove images, add images, etc.

        If the number of images is different from the batch size when returning,

        then the script has the responsibility to also update the following attributes in the processing object (pp):

          - pp.prompts

          - pp.negative_prompts

          - pp.seeds

          - pp.subseeds

        then the script has the responsibility to also update the following attributes in the processing object (p):

          - p.prompts

          - p.negative_prompts

          - p.seeds

          - p.subseeds

        **kwargs will have same items as process_batch, and also:

          - batch_number - index of current batch, from 0 to number of batches-1