Port rotate (#880)

* Add rotate command

* Add rotate counter clockwise

* Fix comments in the code

* Fix clippy warnings

* Fix comment

* Fix wrong step for non even table sizes

* Fix comment for moving through array

* Refactor rotate and have only one command with a --ccw flag for counter-clockwise rotation. By default, rotate is clockwise

* Update usage description

crates/nu-command/src/default_context.rs

@@ -87,6 +87,7 @@ pub fn create_default_context(cwd: impl AsRef<Path>) -> EngineState {
             Reject,
             Rename,
             Reverse,
+            Rotate,
             Select,
             Shuffle,
             Skip,