move contents of taskchampion repo to tc/

rust/cli/src/bin/ta.rs

@@ -0,0 +1,11 @@
+use std::process::exit;
+
+pub fn main() {
+    match taskchampion_cli::main() {
+        Ok(_) => exit(0),
+        Err(e) => {
+            eprintln!("{:?}", e);
+            exit(e.exit_status());
+        }
+    }
+}