* Only decode hex if requested

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Cleanup code

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add some tests

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add license

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Docs

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Clippy

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* bump version, breaking (tiny) change in output.

* Move integration tests to own folder

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Dan Shields <nukemandan@protonmail.com>