Support CMake build compatible with [SwiftPM](https://github.com/swiftlang/swift-package-manager/blob/main/CMakeLists.txt#L43) similar to [swift-certificates](https://github.com/apple/swift-certificates/blob/main/CMakeLists.txt), [swift-argument-parser](https://github.com/apple/swift-argument-parser/blob/main/CMakeLists.txt), or other SPM dependencies of SwiftPM.
Support CMake build compatible with SwiftPM similar to swift-certificates, swift-argument-parser, or other SPM dependencies of SwiftPM.