feat(builders,daffio): generate sitemap

[griest024]

PR Checklist

• [ ] Commit message follows our contributing guidelines
• [ ] Tests added/updated (for bug fixes/features)
• [ ] Documentation added/updated (for bug fixes/features)

PR Type

• [ ] Bug fix
• [x] Feature
• [ ] Style update
• [ ] Refactor
• [ ] Test
• [ ] Build
• [ ] CI
• [ ] Docs
• [ ] Performance
• [ ] Other (please describe)

Current behavior

Fixes: #4094 Part of: #

New behavior

Breaking change?

• [ ] Yes
• [ ] No

Additional context

[griest024]

@damienwebdev this needs a re-review

[griest024]

@damienwebdev bump