Prepare reading in files

src/Tools/tool_helper/src/lib.rs

@@ -53,4 +53,14 @@ pub fn os_str_to_string(input: &std::ffi::OsStr, name: &str) -> Result<String> {
 
 pub fn get_file_name_from_path_buf(input: &PathBuf, name: &str) -> Result<String> {
     os_str_to_string(Error::ok_or_new(input.file_name(), ||format!("No {} file name found", name), None)?, name)
+}
+
+pub fn input_to_vec(input: Input) -> Result<Vec<u8>> {
+    let mut data = Vec::new();
+
+    for byte in input.bytes() {
+        data.push(Error::try_or_new(byte, None)?);
+    }
+
+    Ok(data)
 }