Integrate Civo as a cloud provider

[vishalanarase]

Hello Kubernetes Community,

Which component this PR applies to?

cluster-autoscaler

What type of PR is this?

/kind feature

What this PR does / why we need it:

We are the Civo Kubernetes Team: @vishalanarase, @birdiesanders, and @RealHarshThakur. We worked during the past month to implement a Node Autoscaler for Civo Kubernetes software as a cloud provider, and we're sending it here for broader community use.

It has the basic support you would expect, like increasing and decreasing node groups.

We're here if you have any questions!

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: ricoleabricot / name: Pierrick Gicquelais (5cb2a3f)
• ✅ login: vishalanarase / name: Vishal Anarase (641b3a3, fb20b45, 7c348c0, e2110e0, 4fdf49b, d2678bb)
• ✅ login: x13n / name: Daniel Kłobuszewski (b2a11d5)
• ✅ login: yogeek / name: Guillaume Dupin (e41b9be, 47f465d)
• ✅ login: dbonfigli / name: Diego Bonfigli (1e165b1)
• ✅ login: gregth / name: Grigoris Thanasoulas (04ec0af)

[k8s-ci-robot]

Welcome @vishalanarase!

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[mwielgus]

Please sign the CLA. Without the CLA we won't review the PR.

[vishalanarase]

@mwielgus Can you please take a look now?

[mwielgus]

Please inline all of the dependencies inside the cloud provider directory - see other cloud providers for reference. We don't allow any new cloud provider dependencies in vendor. To pass the OWNER file check please comment out your name (don't remove it as we need to know who to contact for reviews/in case of problems).

[vishalanarase]

@mwielgus can you please take a look?

[vishalanarase]

@mwielgus @feiskyer @aleksandra-malinowska Can you please review?

[vishalanarase]

@mwielgus @feiskyer @aleksandra-malinowska Can you please take a look? It's pending for a long time.

[mwielgus]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mwielgus, vishalanarase

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• cluster-autoscaler/OWNERS [mwielgus]

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