fix: reduce bones_schema dependencies

[nelson137]

Closes #419

Changes

• Move all dependencies that are only re-exported (those not used directly) from bones_utils to the workspace
  • Other crates that used those re-exported modules now inherit the dependency from the workspace and use it directly
• Feature-flagged some modules in bones_utils that aren't needed by bones_schema
  • ulid was the main transitive dependency not needed by bones_schema
  • instant and turborand where only needed by the ulid module, so those were gated too
  • The rest of the utils modules could be gated as well, but the schema crate is the focus of these change

Dependency Graph

I created a blank lib crate and took a path dependency on bones_schema. Then used cargo-depgraph to visualize the resulting dependencies of these changes.

Before

After

[zicklag]

I didn't review the code, but I love the new depgraph! 🤩

[MaxCWhitehead]

Looks great, thank you! I will start following the practice of using workspace deps when relevant. Should also make our lives easier bumping versions across crates without introducing issues or screwing up deps.

[MaxCWhitehead]

Also good find on cargo-depgraph, will have to write that down for the future.