move to include_str!() macro for all data

Move away from I/O to just including the data in the program via macro.

src/utils.rs

@@ -1,9 +1,5 @@
 use anyhow::Result;
-use std::{fs, str::FromStr};
-
-pub fn read_data<T: FromStr>(filename: &str) -> Result<Vec<T>> {
-    parse_data(&read_file(filename)?)
-}
+use std::str::FromStr;
 
 pub fn parse_data<T: FromStr>(s: &str) -> Result<Vec<T>> {
     let mut ret = Vec::new();
@@ -16,7 +12,3 @@ pub fn parse_data<T: FromStr>(s: &str) -> Result<Vec<T>> {
     }
     Ok(ret)
 }
-
-pub fn read_file(filename: &str) -> Result<String> {
-    Ok(fs::read_to_string(filename)?)
-}