* Replace torchvision annotator with native local Annotator

* Add colored bounding boxes and rewrite for efficiency

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix pep8 issue

* Update clearml_utils.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update clearml_utils.py

* Reduced conf_threshold to 0.25 to match defaults

The 0.25 default conf threshold value is used a default throughout YOLOv5 (i.e. in detect.py) and also in other tools like CoreML
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>