ultralytics 8.0.136 refactor and simplify package (#3748)

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>

docs/reference/trackers/utils/gmc.md

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+## GMC
+---
+### ::: ultralytics.trackers.utils.gmc.GMC
+<br><br>

docs/reference/trackers/utils/kalman_filter.md

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+## KalmanFilterXYAH
+---
+### ::: ultralytics.trackers.utils.kalman_filter.KalmanFilterXYAH
+<br><br>
+
+## KalmanFilterXYWH
+---
+### ::: ultralytics.trackers.utils.kalman_filter.KalmanFilterXYWH
+<br><br>

docs/reference/trackers/utils/matching.md

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+## merge_matches
+---
+### ::: ultralytics.trackers.utils.matching.merge_matches
+<br><br>
+
+## _indices_to_matches
+---
+### ::: ultralytics.trackers.utils.matching._indices_to_matches
+<br><br>
+
+## linear_assignment
+---
+### ::: ultralytics.trackers.utils.matching.linear_assignment
+<br><br>
+
+## ious
+---
+### ::: ultralytics.trackers.utils.matching.ious
+<br><br>
+
+## iou_distance
+---
+### ::: ultralytics.trackers.utils.matching.iou_distance
+<br><br>
+
+## v_iou_distance
+---
+### ::: ultralytics.trackers.utils.matching.v_iou_distance
+<br><br>
+
+## embedding_distance
+---
+### ::: ultralytics.trackers.utils.matching.embedding_distance
+<br><br>
+
+## gate_cost_matrix
+---
+### ::: ultralytics.trackers.utils.matching.gate_cost_matrix
+<br><br>
+
+## fuse_motion
+---
+### ::: ultralytics.trackers.utils.matching.fuse_motion
+<br><br>
+
+## fuse_iou
+---
+### ::: ultralytics.trackers.utils.matching.fuse_iou
+<br><br>
+
+## fuse_score
+---
+### ::: ultralytics.trackers.utils.matching.fuse_score
+<br><br>
+
+## bbox_ious
+---
+### ::: ultralytics.trackers.utils.matching.bbox_ious
+<br><br>