Add basic benchmarks

src/lib.rs

@@ -0,0 +1,2 @@
+pub mod modules;
+pub mod print;

src/main.rs

@@ -1,6 +1,5 @@
 #[macro_use]
 extern crate clap;
-extern crate ansi_term;
 
 mod modules;
 mod print;

src/print.rs

@@ -11,7 +11,7 @@ pub fn prompt(args: ArgMatches) {
     }
 }
 
-fn print_segment(segment: Segment) {
+pub fn print_segment(segment: Segment) {
     let Segment {
         prefix,
         value,