Add support for masks

src/framework/commands/arguments.rs

@@ -171,7 +171,7 @@ impl<S, E> FromArguments<S, E> for bool {
             }
         }
 
-        match arg {
+        match arg.to_lowercase().as_str() {
             "y" | "yes" | "on" | "true" | "t" | "1" => Ok((true, rest)),
             "n" | "no" | "off" | "false" | "f" | "0" => Ok((false, rest)),
             _ => Err(ArgumentParsingError::InvalidArgument),