[PM-14800] Implement Credential Exchange protocol

[fedemkr]

🎟️ Tracking

PM-14800

📔 Objective

⚠️ This has been replaced by #1198. Leaving this PR opened just for some tests needed for SDK.

Implement new Credential Exchange protocol for importing/exporting credentials leveraging the Bitwarden SDK for it.
Depends on: bitwarden/sdk-internal#32

⚠️ This requires Xcode 16.2 (currently in beta 2). The code has several compiler checks #if compiler(>=6.0.3) to ensure that block of code is only compiled when in the proper version of the compiler/Xcode; this ensures Xcode stable version to continue compiling the project.

🔔 How to trigger Export credentials

Settings -> Vault -> Export vault -> File format = Credential exchange -> Export vault

📸 Screenshots

TBD

⏰ 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 – 6f447985-d85d-4b1f-976b-f89c722a4d96

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