* Create QSW-6900-56LF.yaml QSW-6900-56LF switches are data center oriented high density 10G access switches, providing 10G/100G access, low latency, and complete data center features. * Update QSW-6900-56LF.yaml Added weight, airflow and comments * Update QSW-6900-56LF.yaml Fixed slug --------- Co-authored-by: Daniel W. Anner <daniel.anner@danstechsupport.com>