Rust 1.78 dropped support for Windows 7, which forces us to add the Bcrypt library (see D16547), and adds the bcryptprimitives.dll and api-ms-win-core-synch-l1-2-0.dll libraries. Since these are core libraries, it's fine to add them. N.B.: BCryptGenRandom is needed by the rand crate.
Depends on D16547.