* 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
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Co-authored-by: Daniel W. Anner <daniel.anner@danstechsupport.com>