feat: Initial launch v0.1.0

Initialize `sized` CLI tool with comprehensive features for directory visualization.

Features:
- Fast parallel directory traversal using `rayon`.
- Rich table output with colors and dual units (Binary/Decimal).
- Recursive sizing with depth control (`-d`).
- Filtering by minimum size (`-m`).
- Sorting by name, type, size, or blocks (`--sort`).
- Gitignore integration (`--ignore`).
- Multiple output formats: Text, CSV, JSON (`--format`).
- Export to file functionality (`--save`).
- Shell completion generation (`--completions`).

Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "sized"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+clap = { version = "4.4", features = ["derive"] }
+walkdir = "2.3"
+rayon = "1.8"
+humansize = "2.1"
+colored = "2.0"
+comfy-table = "7.0"
+byte-unit = "5.0"
+strum = { version = "0.25", features = ["derive"] }
+ignore = "0.4"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+csv = "1.3"
+chrono = "0.4"
+clap_complete = "4.4"
+atty = "0.2"