Extract SemanticVersion into its own crate (#9956)

This PR extracts the `SemanticVersion` out of `util` and into its own
`SemanticVersion` crate.

This allows for making use of `SemanticVersion` without needing to pull
in some of the heavier dependencies included in the `util` crate.

As part of this the public API for `SemanticVersion` has been tidied up
a bit.

Release Notes:

- N/A

crates/util/src/util.rs

@@ -3,14 +3,12 @@ pub mod fs;
 pub mod github;
 pub mod http;
 pub mod paths;
-mod semantic_version;
 #[cfg(any(test, feature = "test-support"))]
 pub mod test;
 
 use futures::Future;
 use lazy_static::lazy_static;
 use rand::{seq::SliceRandom, Rng};
-pub use semantic_version::*;
 use std::{
     borrow::Cow,
     cmp::{self, Ordering},