feat(overview): add cluster host count

[tenthirtyam]

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Summary of Pull Request

Adds support for including the number of ESXi hosts per cluster in System Overview Report.

Signed-off-by: Ryan Johnson johnsonryan@vmware.com

Type of Pull Request

• This is a bug fix.
• This is an enhancement or feature.
• This is a code style / formatting update.
• This is a documentation update.
• This is a refactoring update.
• This is a chore update
• This is something else.
  Please describe:

Related to Existing Issues

Closes #45

Test and Documentation Coverage

Standard Output:

Anonymized Output:

• Tests have been completed (for bug fixes / features).
• Documentation has been added / updated (for bug fixes / features).

Breaking Changes?

• Yes, there are breaking changes.
• No, there are no breaking changes.

[github-actions]

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