feat(xatu): scaffold source collection

src/xatu/xatu.rs

@@ -0,0 +1,16 @@
+use std::path::PathBuf;
+
+pub fn run(files: Vec<SourceFile>) -> Result<()> {
+    for file in files {
+        println!("{}", file.path.display());
+    }
+    Ok(())
+}
+
+pub type Result<T> = std::result::Result<T, std::io::Error>;
+
+#[derive(Debug)]
+pub struct SourceFile {
+    pub path: PathBuf,
+    pub source: String,
+}