Enable LibraryEvolution since the library is stable and avoid ABI bre…

[bigbangvn]

Enable LibraryEvolution since the library is stable and avoid ABI breaking issue when an xcframework uses SwiftyRSA

Fixes #

Checklist:

• Correct file headers (see CONTRIBUTING.md).
• Formatted with SwiftFormat.
• Tests added.

Changes proposed in this pull request:

Enable LibraryEvolution since the library is stable and avoid ABI breaking issue when an xcframework uses SwiftyRSA

Example.

• MyLibrary is compiled to xcframework and it uses SwiftyRSA version x.1
• MyLibrary is used in application A, that uses SwiftyRSA version x.2
• SwiftyRSA version x.2 only reorders/inserts a new public function to a class, but without Library Evolution on, that can cause ABI breaking issue -> crash at runtime of application A, unexpected behaviour.

Benefits for prebuilt xcframework:

• ABI resilient
• Xcode/swift version compatibility