Introduce OracleDatabase VMCluster Resource & Data and DBServer Data

[eelhomsi]

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Description

Introduce OracleDatabase VMCluster Resource & Data and DBServer Data
Most relevant changes in:
internal/services/oracledatabase/

PR Checklist

• I have followed the guidelines in our Contributing Documentation.
• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have checked if my changes close any open issues. If so please include appropriate closing keywords below.
• I have updated/added Documentation as required written in a helpful and kind way to assist users that may be unfamiliar with the resource / data source.
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  For example: “resource_name_here - description of change e.g. adding property new_property_name_here”

Testing

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VMCluster Resource tests (ran one by one due to tenancy resourcing constraints):

Change Log

Below please provide what should go into the changelog (if anything) conforming to the Changelog Format documented here.

• FEATURES - Introduced new CloudVmClusterResource, CloudVmClusterDataSource, and DBServersDataSource`.

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Note

If this PR changes meaningfully during the course of review please update the title and description as required.

[eelhomsi]

Test evidence here:

[stephybun]

Thanks @eelhomsi LGTM 🎉

[github-actions]

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