Aoc-lube

- `python -m aoc_lube [-y YEAR] [-t TEMPLATE]` to setup an AoC directory from the command line.
- `setup_dir` now accepts a code template path.
- Inputs are stored in separate text files (instead of a single toml file). Fetched inputs can now be opened automatically in vs code. (Open an issue or submit a PR to open input automatically in editor X).

After a surviving last year's Advent of Code with `aoc_lube`, I now consider this stable.

Changes:
- Source has been formatted and linted with `ruff`.
- Dependencies are updated to newest versions.

Changes in `utils`:
- `Deltas` class replaced with `GRID_NEIGHBORHOODS` dictionary.
- `inbounds_steps` renamed to `grid_steps`.
- `pairwise_cycle` renamed `sliding_window_cycle`.

Also whoops.

Whoops.

See: https://www.reddit.com/r/adventofcode/comments/z9dhtd/please_include_your_contact_info_in_the_useragent/