Add a subcommand to generate dependency graphs (#13402)

## Summary

This PR adds an experimental Ruff subcommand to generate dependency
graphs based on module resolution.

A few highlights:

- You can generate either dependency or dependent graphs via the
`--direction` command-line argument.
- Like Pants, we also provide an option to identify imports from string
literals (`--detect-string-imports`).
- Users can also provide additional dependency data via the
`include-dependencies` key under `[tool.ruff.import-map]`. This map uses
file paths as keys, and lists of strings as values. Those strings can be
file paths or globs.

The dependency resolution uses the red-knot module resolver which is
intended to be fully spec compliant, so it's also a chance to expose the
module resolver in a real-world setting.

The CLI is, e.g., `ruff graph build ../autobot`, which will output a
JSON map from file to files it depends on for the `autobot` project.

crates/red_knot_python_semantic/src/module_resolver/mod.rs

@@ -1,6 +1,6 @@
 use std::iter::FusedIterator;
 
-pub(crate) use module::Module;
+pub use module::Module;
 pub use resolver::resolve_module;
 pub(crate) use resolver::{file_to_module, SearchPaths};
 use ruff_db::system::SystemPath;