- Optimize package granularity and imports
- Adjust targets to smaller TunnelKit components
- Raise iOS target to 13
- Drop support for TLS security level
- Drop CocoaPods completely
- Make PassepartoutCore a Swift package
- Enable Bitcode to fix OpenSSL linkage (iOS)
- Update CI scripts without CocoaPods
When present, pick cipher among available data ciphers from
configuration, rather than all recognized ciphers.
Reorder available ciphers by decreasing "security".