feat: Created 2 new Samples - Hyperdisk create pool, Create Hyperdisk from pool

[Thoughtseize1]

Description

2 new Samples created for Compute + updated tests.

Region tag	Filename	Doc.page
compute_hyperdisk_pool_create	/snippets/disks/create_hyperdisk_storage_pool.py	Page
compute_hyperdisk_create_from_pool	/snippets/disks/create_hyperdisk_from_pool.py	Page

Checklist

• I have followed Sample Guidelines from AUTHORING_GUIDE.MD
• README is updated to include all relevant information
• Tests pass: nox -s py-3.9 (see Test Environment Setup)
• 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
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• compute/client_library/snippets/disks/create_hyperdisk_from_pool.py:22, tag compute_hyperdisk_create_from_pool
• compute/client_library/snippets/disks/create_hyperdisk_storage_pool.py:22, tag compute_hyperdisk_pool_create

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