OCI Cloudprovider fixes and features Backport for 1.30

[gvnc]

What type of PR is this?

/kind bug
/kind feature

What this PR does / why we need it:

This PR includes a bunch of PRs cherry-picked to cluster-autoscaler-release-1.30 branch so that next version would include them.
These were already merged to master branch.

1. Modify logic to look for ocid type prefix in OCI cloud provider builder #6918
2. fix: implement HasInstance() for OCI providers #7154
3. allow CA working even with a wrong oci nodepoolid provided #7346
4. node-group-auto-discovery support for oci #7403
5. exclude self-managed nodes from being processed #7453
6. Avoid making delete api calls for nodes that don't have an instance id #7557

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Added OCI support for **node-group-auto-discovery** parameter. 

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

- [Usage]: **node-group-auto-discovery** parameter should have a value in the pattern;
- `clusterId:<clusterId>,compartmentId:<compartmentId>,nodepoolTags:<tagKey1>=<tagValue1>&<tagKey2>=<tagValue2>,min:<min>,max:<max>`

[k8s-ci-robot]

Hi @gvnc. Thanks for your PR.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: gvnc
Once this PR has been reviewed and has the lgtm label, please assign jlamillan for approval. For more information see the Kubernetes Code Review Process.

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[jlamillan]

/ok-to-test