[AVITI] Add NGL Treatment demultiplexStat

As illumina's one, at run and readset levels

changed milestone to %Next from V1.25.2

added AVITI NGL-Bi New Feature labels

assigned to @jsabban

mentioned in commit 6e74f10f

mentioned in commit 2ccb885e

mentioned in commit 88c8674d

closed

mentioned in merge request !28 (merged)