* add doc & move code to cpp

* add check for track_model and det_model

* add draw_center_traj

* add implementment for FlowStatics

* rename count to entrance_count; rename count_set to id_set

* add a todo for entrance line setting

* rename count to do_entrance_counting

* convert print_save_file to the origin line

* visualize entrance line

* fix conflicts

* move entrance_line show in plot_track

* add model_dir as input

* unify log output

* add flow_statistic for mot_jde

* raise NotImplementedError when multi-class entrance counting is chosen

* revert * 'mp4v' to *'mp4v'

* add python flow_statistic for sde

* update window timer for pptracking

* keep origin mp4v format

* add flow_statistic for mot_jde

* raise NotImplementedError when multi-class entrance counting is chosen

* revert * 'mp4v' to *'mp4v'

* add implementment for FlowStatics

* rename count to entrance_count; rename count_set to id_set

* add a todo for entrance line setting

* rename count to do_entrance_counting

* convert print_save_file to the origin line

* add python deploy for pptracking

* fix plot tracking classes

* fix picodet deepsort

* fix format

* rename to det_infer

* add stream input

* add stream input & add save_result

* update citation

* update citation

* add tracking pipeline

* move pptracking to deploy

* update according to review

* refine class define

* add yaml cmake