* 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