update package to swift 5 #114
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TL;DR
Update Swift Package Manager configuration to Swift 5.0 and fix compatibility issues.
What changed?
@retroactivetoEquatableconformanceencodedOffsettoutf16OffsetHow to test?
Why make this change?
Swift 5.0 introduced ABI stability and several language changes that required updates to the codebase. This change ensures compatibility with modern Swift versions while maintaining support for specific platform versions. The addition of the test target in Package.swift also improves the development experience by making tests directly accessible through SPM.