add swiftUI code

iOS-SwiftUI-Code/GRDB.swift-6.29.3/Documentation/ReleaseProcess.md

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+Release Process
+===============
+
+**This is internal documentation.**
+
+To release a new GRDB version:
+
+- Tests
+    - `make distclean test`
+    - Build and run GRDBDemoiOS in Release configuration on a device
+    - Archive GRDBDemoiOS
+    - Check for performance regression with GRDBOSXPerformanceTests
+- On https://github.com/groue/sqlcipher.git upgrade, update SQLCipher version in README.md
+- On https://github.com/swiftlyfalling/SQLiteLib upgrade, update SQLite version in Documentation/CustomSQLiteBuilds.md
+- Update GRDB version number and release date in:
+    - CHANGELOG.md
+    - GRDB.swift.podspec
+    - README.md
+    - Support/Info.plist
+- Commit and tag
+- Look for undesired tags: `git for-each-ref --format '%(refname) %(authorname)' refs/tags`
+- Push to the `master` branch
+- Push to the `development` branch
+- Push to the `GRDB6` branch
+- `pod trunk push --allow-warnings GRDB.swift.podspec`
+- Update [performance comparison](https://github.com/groue/GRDB.swift/wiki/Performance):
+
+    `make test_performance | Tests/parsePerformanceTests.rb | Tests/generatePerformanceReport.rb`