Derive Debug and PartialEq for amethyst_input::Axis.

Issue amethyst#903

amethyst_input/src/axis.rs

@@ -2,7 +2,7 @@ use super::{Button, ControllerAxis};
 
 /// Represents any input represented by a float value from -1 to 1.
 /// Retrieve the value of this with [axis_value](struct.InputHandler.html#method.axis_value).
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Debug, PartialEq, Serialize, Deserialize, Clone)]
 pub enum Axis {
     /// Represents an emulated analogue axis made up of pair of digital inputs,
     /// like W and S keyboard buttons or `DPadUp` and `DPadDown` controller buttons.

docs/CHANGELOG.md

@@ -22,6 +22,8 @@ The format is based on [Keep a Changelog][kc], and this project adheres to
 * Simplified creating states with SimpleState and EmptyState. ([#887])
 * Updated ProgressCounter to show loading errors. ([#892])
 * Replaced the `imagefmt` crate with `image`. ([#877])
+* Derive `Debug` and `PartialEq` for `amethyst_input::Axis`. ([#903], [#904])
+
 ### Removed
 
 ### Fixed
@@ -34,6 +36,8 @@ The format is based on [Keep a Changelog][kc], and this project adheres to
 [#892]: https://github.com/amethyst/amethyst/pull/892
 [#877]: https://github.com/amethyst/amethyst/pull/877
 [#896]: https://github.com/amethyst/amethyst/pull/896
+[#903]: https://github.com/amethyst/amethyst/issues/903
+[#904]: https://github.com/amethyst/amethyst/pull/904
 
 ## [0.8.0] - 2018-08
 ### Added