Deconstruct PNG imag

src/Tools/tool_helper/src/lib.rs

@@ -15,6 +15,10 @@ pub struct Error {
 impl Error {
     const DEFAULT_EXITCODE:i32 = -1;
 
+    pub fn from_str(str: &str) -> Error {
+        Self::from_text(str.to_owned())
+    }
+
     pub fn from_text(text: String) -> Error {
         Error{exit_code: Self::DEFAULT_EXITCODE, action: String::new(), text}
     }