message: Add type to proptypes
  Add missing property `type` to Icon.PropTypes
diff: @@ -76,6 +76,7 @@ Icon.propTypes = {
  ios: PropTypes.string,
  android: PropTypes.string,
  active: PropTypes.bool,
  + type: PropTypes.string,
  };
  const StyledIcon = connectStyle("NativeBase.Icon", {}, mapPropsToStyleNames)(Icon);
  