Initial checkpoint.

The system is capable of parsing it's command
line, and of generating a mesh representing
the mushroom's stalk.

Cargo.toml

@@ -4,3 +4,6 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+approx = "0.5.1"
+clap = { version = "4.5.4", features = ["derive"] }
+stl_io = "0.7.0"