Added API to reverse direction of slider

Author: enioarz

components/dash-core-components/src/components/Slider.react.js

@@ -156,6 +156,11 @@ Slider.propTypes = {
      */
     verticalHeight: PropTypes.number,
 
+    /**
+     * If the value is true, it means the component is rendered reverse.
+     */
+    reverse: PropTypes.bool,
+
     /**
      * Additional CSS class for the root DOM node
      */
@@ -208,6 +213,7 @@ Slider.defaultProps = {
     persisted_props: ['value'],
     persistence_type: 'local',
     verticalHeight: 400,
+    reverse: false,
 };
 
 export const propTypes = Slider.propTypes;

components/dash-core-components/src/fragments/Slider.react.js

@@ -27,6 +27,7 @@ const sliderProps = [
     'included',
     'tooltip',
     'vertical',
+    'reverse',
     'id',
 ];