Juniper EX4400 Series and ACX7100-32C (#1290)

* Adding ACX7100-32C (Juniper)

* Adding EX4400 Series Switches (Juniper)

* align slug to start with vendor-name

* adding module types

* remove airflow from modules and adding weight to ACX7100-32C

* create device types for all ACX7100 models

* fix position

* adding AFI, AFO and AC/DC models for EX4400 series

* fix slug

* add part_number to all devices

* fix typo in module name

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