Initial setup for a separate compare target.

src/compare/mod.rs

@@ -0,0 +1 @@
+

src/org_compare.rs

@@ -0,0 +1,6 @@
+#![feature(round_char_boundary)]
+mod compare;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    Ok(())
+}