Move some workspace crates into a separate repository

[NobodyXu]

Move:

• leon and leon-macros into one repository leon
• atomic-file-install
• fs-lock
• normalize-path
• simple-git
• cargo-toml-workspace

Rationale:

• they are not.strongly coupled with cargo-binstall
• they rarely update
• they can be reused outside cargo-binstall easily
• improve caching since rust-cache doesn't cache workspace to reduce cache size

[passcod]

I think if we're going to split let's split all the atomic-file-install, fs-lock, and normalize-path into their own individual repos. They're not really related to each other.

[NobodyXu]

Yeah that makes sense.

[passcod]

while i'm here, leon Template should support ToOwned to convert all the borrowed cows into owned ones

[NobodyXu]

Yeah, I can add that function when koving them to a separate repo

[NobodyXu]

@passcod std::borrow::ToOwned is implemented for T: Clone, though <Cow as Clone>::clone returns a copies of the Cow::Borrowed.

I could manually implement <Template as Clone>::clone to convert Cow::Borrowed to Cow::Owned, but I feel that it is a breaking behavior.

Maybe we could add an associated fn to_owned to leon::Template?

P.S. I've already moved the code into a new repository https://github.com/cargo-bins/leon

[passcod]

I think we might as well issue a breaking change implementing ToOwned 'correctly'

[NobodyXu]

created cargo-bins/leon#4 to further discuss this