Feature request: hide empty values

Might you be persuaded to add a tiny check to your nice little plugin?

In the method WPCAG_Fo::attributes_table all attributes are listed regardless if they have a value or not.

I added a rudimentary check…

	public static function attributes_table( $product_attributes ) {
		ob_start();
		?>
        <table class="woocommerce-product-attributes shop_attributes">
			<?php foreach ( $product_attributes as $product_attribute_key => $product_attribute ) { 
				if ( $product_attribute['value'] ) {
				?>
                <tr class="woocommerce-product-attributes-item woocommerce-product-attributes-item--<?php echo esc_attr( $product_attribute_key ); ?>">
                    <th class="woocommerce-product-attributes-item__label"><?php echo wp_kses_post( $product_attribute['label'] ); ?></th>
                    <td class="woocommerce-product-attributes-item__value"><?php echo wp_kses_post( $product_attribute['value'] ); ?></td>
                </tr>
			<?php } } ?>
        </table>
		<?php
		return apply_filters( 'wpcag_attributes_table', ob_get_clean(), $product_attributes );
	}

…but seeing that I can’t extend the class and override it, it’s a bit on the volatile side. The real solution would of course be to add an option for this in the plugin itself.