style: Reorg repo structure and add CODEOWNERS

[alessfg]

Proposed changes

Reorganized the overall repo structure so that demos are categorized by product offering; and add explicit CODEOWNERS for each demo.

Checklist

Before creating a PR, run through this checklist and mark each as complete:

• I have read the contributing guidelines.
• I have signed the F5 Contributor License Agreement (CLA).
• If applicable, I have added tests that prove my fix is effective or that my feature works.
• If applicable, I have checked that any relevant tests pass after adding my changes.
• I have updated any relevant documentation (README.md and/or CHANGELOG.md).

[Copilot]

Copilot reviewed 137 out of 138 changed files in this pull request and generated 1 comment.

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CHANGELOG.md:1

• The removal of CHANGELOG entries may lead to loss of project version history. If this deletion is unintentional, consider archiving the old entries instead of removing them completely.

## 1.0.0 (Month Date, Year) ... Initial release of this project.

.github/workflows/ossf_scorecard.yml:11

• The branch filter was reduced to only 'main', removing 'master'. Please verify that this change reflects the current branch usage for the repository.

branches: [main]

[Copilot]

Copilot reviewed 115 out of 116 changed files in this pull request and generated no comments.

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• .github/CODEOWNERS: Language not supported

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.github/workflows/ossf_scorecard.yml:11

• Limiting branch filtering to 'main' may exclude updates from the 'master' branch if it is still in use. Please verify that this change is intentional.

+    branches: [main]