What is this issue?

This issue is to track the replacement packngo with metal-go for all interactions with the Equinix Metal API.
The Metal-go SDK is generated from the Equinix Metal API spec, and we will gradually replace all usage of packngo with Metal-go to streamline support.

Which issue(s) this PR fixes (optional, in fixes #(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

List of PRs

• Added client metal-go #274
• Updated metal-go client for projects sub-commands #276
• Updated metal-go client for sub-command orgs #284
• Updated metal-go client for capacity sub-commands #285
• Updated metal-go client for sub-command SSH-KEY #318
• Updated metal-go client for sub-commands Users #316
• Updated metal-go client for sub-command devices #282
• fix: Updated metal-go client for sub-commands Virtual Network #315
• feat: Updated metal-go client for sub-commands ips #291
• Updated metal-go client for sub-commands ports #290
• fix: Updated metal-go client for sub-commands gateways #289
• Added Unit test case for events sub commands #305
• chore: Updated metal-go client for sub-command twofa #334
• feat: Added support for Metal Interconnections #321
• chore: Updated metal-go client for sub-commands hardware reservations #288

Replaces #270