Support for SwiftPM prebuilt libraries

Tuist now supports SwiftPM prebuilt libraries when generating projects. This lets SwiftPM packages that ship precompiled binaries, such as the SwiftSyntax macro support libraries, integrate correctly with Tuist-generated targets. Macro and plugin targets can use the prebuilt include and linker settings, while regular runtime dependencies on the same package continue to use source or cached targets as before.