Merge branch 'clone_output' into 'master'

Impl `Clone` to `Output`

See merge request davidbittner/ansi-parser!9

src/enums.rs

@@ -131,7 +131,7 @@ impl Display for AnsiSequence {
 ///This is what is outputted by the parsing iterator.
 ///Each block contains either straight-up text, or simply
 ///an ANSI escape sequence.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum Output<'a> {
     TextBlock(&'a str),
     Escape(AnsiSequence),