update relib to be no_std

libraries/relib/src/lib.rs

@@ -1,3 +1,12 @@
+#![no_std]
+
+use alloc::{
+    string::{String, ToString},
+    vec::Vec,
+};
+
+extern crate alloc;
+
 #[derive(Debug)]
 pub struct Path {
     pub path: Vec<String>,
@@ -5,7 +14,7 @@ pub struct Path {
 
 impl Path {
     pub fn new(path: String) -> Self {
-        let mut path_vec_string = vec![];
+        let mut path_vec_string = Vec::new();
 
         for part in path.split(&['\\', '/'][..]) {
             path_vec_string.push(part.to_string());