rust-revlog: using the ad-hoc `NodeTree` in scmutil
Now that we have an independent `NodeTree` class able to work natively
on the pure Rust index, we use it in `mercurial.scmutil`, with automatic
invalidation after mutation of the index.
This code path is tested by `test-revisions.t` and `test-template-functions.t`
[build-system]
requires = ["setuptools", "wheel"]
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true