Add tool.uv.build-constraint-dependencies to pyproject.toml (#11585)

## Summary

Resolves #6913. 

Add `tool.uv.build-constraint-dependencies` to pyproject.toml.
The changes are analogous to the constraint-dependencies feature
implemented in #5248.

Add documentation for `build-constraint-dependencies`

## Test Plan

Add tests for `uv lock`, `uv add`, `uv pip install` and `uv pip
compile`.

---------

Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>

crates/uv-scripts/src/lib.rs

@@ -331,6 +331,7 @@ pub struct ToolUv {
     pub top_level: ResolverInstallerOptions,
     pub override_dependencies: Option<Vec<uv_pep508::Requirement<VerbatimParsedUrl>>>,
     pub constraint_dependencies: Option<Vec<uv_pep508::Requirement<VerbatimParsedUrl>>>,
+    pub build_constraint_dependencies: Option<Vec<uv_pep508::Requirement<VerbatimParsedUrl>>>,
     pub sources: Option<BTreeMap<PackageName, Sources>>,
 }