Cisco power supplies fans (#1200)

* C9300 support for modular power supplies and fans

* Fix weight format

* Convert power supplies to module-bays

* Fixed typo

* Convert power supplies to module-bays

* Correct Power supply names

* Merge

* Update Nexus devices and Nexus PSUs

* Removed N7K-7702.yaml correct one is N77-7702.yaml

* Fixed Pytest Errors

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