WIP: purification clean up and performance fix#16

Merged

cortner merged 5 commits intomainfrom jh/clean_purify

Jul 31, 2024

+95-113

Commits on Sep 7, 2023

quick clean up, more performance fix soon
CheukHinHoJerry
committed

Commits on Sep 10, 2023

CCS format implementation
CheukHinHoJerry
committed

Commits on Sep 11, 2023

more fix and use inplace sort
CheukHinHoJerry
committed

Commits on Jul 31, 2024