Add s3 upload/download progress reporting callable support

[MHendricks]

Example using rich to show download progress of multiple files at once.

import concurrent.futures
from functools import partial
from itertools import islice
from cloudpathlib import CloudPath, S3Client
from rich.progress import BarColumn, DownloadColumn, Progress, TransferSpeedColumn, TextColumn

callback_state: dict[CloudPath, dict] = {}


def progress_callback(progress, direction, state, cloud_path, bytes_sent):
    if state == "start":
        progress.start()
        size = cloud_path.stat().st_size
        task_id = progress.add_task("Downloading", total=size, filename=cloud_path.name)
        callback_state[cloud_path] = dict(task_id=task_id, size=size)
    elif state == "stop":
        if cloud_path in callback_state:
            del callback_state[cloud_path]
    else:
        info = callback_state[cloud_path]
        progress.update(info["task_id"], advance=bytes_sent)


def download_url(cloud_path):
    # Trigger download of non-cached files
    cloud_path.fspath


def download(urls) -> None:
    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
        future_to_url = {}
        for url in urls:
            future_to_url[executor.submit(download_url, url)] = url

        for future in concurrent.futures.as_completed(future_to_url):
            try:
                future.result()
            except Exception as exc:
                print('%r generated an exception: %s' % (future_to_url[future], exc))
        progress.stop()


if __name__ == "__main__":
    # Set up the progress bar and attach the callback to the S3Client
    progress = Progress(
        TextColumn("[blue]{task.fields[filename]}"),
        BarColumn(),
        DownloadColumn(),
        TransferSpeedColumn(),
    )
    client = S3Client(transfer_callable=partial(progress_callback, progress))

    # Download the first first 5 files from this resource.
    # ladi = CloudPath("s3://ladi/Images/FEMA_CAP/2020/70349", client=client)
    ladi = CloudPath("s3://blur-package-distribution-us/hab_distros", client=client)
    download(islice(ladi.iterdir(), 5))

Closes #ISSUE

---

Contributor checklist:

• I have read and understood CONTRIBUTING.md
• Confirmed an issue exists for the PR, and the text Closes #issue appears in the PR summary (e.g., Closes #123).
• Confirmed PR is rebased onto the latest base
• Confirmed failure before change and success after change
• Any generic new functionality is replicated across cloud providers if necessary
• Tested manually against live server backend for at least one provider
• Added tests for any new functionality
• Linting passes locally
• Tests pass locally
• Updated HISTORY.md with the issue that is addressed and the PR you are submitting. If the top section is not `## UNRELEASED``, then you need to add a new section to the top of the document for your change.