PM-23639: Add CXF Import sample

[abergs]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-23639

📔 Objective

This PR adds the CXF sample from the repo so that we can use it for reference.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation
  team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed
  issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 62144745-4ca0-42a6-bfcd-6591ceb1806c

Great job, no security vulnerabilities found in this Pull Request

[abergs]

How do I tell Sonar to relax?

[codecov]

Codecov Report

❌ Patch coverage is 76.92308% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.27%. Comparing base (9f58e91) to head (6f91f2d).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/bitwarden-exporters/src/cxf/import.rs	76.92%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #361      +/-   ##
==========================================
+ Coverage   73.26%   73.27%   +0.01%     
==========================================
  Files         248      248              
  Lines       20823    20848      +25     
==========================================
+ Hits        15255    15277      +22     
- Misses       5568     5571       +3     

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[sonarqubecloud]

Quality Gate failed

Failed conditions
E Security Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

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