feat(cloudkms): Add single tenant hsm scripts

[brandonluong-lgtm]

Description

Fixes #<ISSUE-NUMBER>

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• [x] I have followed Sample Guidelines from AUTHORING_GUIDE.MD
• [x] README is updated to include all relevant information
• [x] Tests pass: nox -s py-3.9 (see Test Environment Setup)
• [x] Lint pass: nox -s lint (see Test Environment Setup)
• [ ] These samples need a new API enabled in testing projects to pass (let us know which ones)
• [ ] These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• [ ] This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• [ ] This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• [x] Please merge this PR for me once it is approved

[brandonluong-lgtm]

The kokoro presubmits are failing as libpcsclite-dev is not installed. This is needed to communicate with smartcards. Is there a way to ensure that the machines running the test have it installed?

In the read me the users would install it using the command sudo apt install libpcsclite-dev

[glasnt]

This PR still has issues, but is additionally changing system dependencies that may need additional support. Please also provide an internal bug to help support this sample.