init: This is the initial commit.

This commit marks the start of the project. This adds a simple
command line interface which can be found in `src/cli.rs`.

src/main.rs

@@ -0,0 +1,9 @@
+use crate::cli::parse_args;
+
+mod cli;
+
+fn main() {
+    let opts = parse_args();
+
+    println!("{opts:#?}");
+}