Support for clone subcommad

[UebelAndre]

Describe the problem you are trying to solve
I'd like a sub command (cargo clone) to exist that fetches a crate source.

Describe the solution you'd like
This would be very similar to cargo vendor but would accept an arbitrary crate and version and not require a manifest. Perhaps https://github.com/ehuss/cargo-clone-crate or https://github.com/JanLikar/cargo-clone could be integrated or something entirely new created from existing code. Cargo obviously has the ability to fetch crate source from a registry, I'd just like to be able to specify what exactly to fetch from a customizable registry and where to put it.

Notes
This request is partially related to #8708 and inspired by google/cargo-raze#218. Cargo-raze now handles binary dependencies in a unique way this is fine for the time being but the ability to use cargo to fetch a crate's source from a registry would simplify things.

[ehuss]

Closing as a duplicate of #1545, though feel free to leave a comment if I misunderstood the request.

[UebelAndre]

Ah thanks, I missed that ticket. Closing as duplicate is the right thing to do here. 🙏