v.1.5.2

v1.5.2

• Change comparison to colab_example
• append utils with opencv conver_mask_to_poly (extra)
• append drop_cocodt_by_score for extra eval

v1.5.1

• breaking change | new static function COCO.load_json
• new curve f1_confidence with cur.plot_f1_confidence()
• breaking change | replace display_matrix arg in_percent to normalize
• breaking change | rework draw functions