Floor datetime , '10:01.07' -> '10:01'
Support sampling multiple market
Merge branch 'feature/sampling_for_different_market' into develop
Rename 'czce' to 'market'
Refactor: rename
Merge branch 'feature/refactor_rename_task_name_and_add_YEAR_freq' into develop
Merge branch 'release/v0.0.6'