release-19.3:Backport!2804

Merged Andrey Vertiprahov requested to merge cherry-pick-aee25d68 into release-19.3

Alcatel.7302. Add get_inventory script.

See merge request !2804 (merged)

(cherry picked from commit aee25d68)

1f9ce44a Alcatel.7302. Add get_inventory script.

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