MAGETWO-59789: Image Swatch size change not working

- Add @NoEscape annotation for json output

Author: VeronikaYarats

app/code/Magento/Swatches/view/frontend/templates/product/view/renderer.phtml

@@ -19,8 +19,7 @@
                 "mediaCallback": "<?= /* @escapeNotVerified */ $block->getMediaCallback() ?>",
                 "gallerySwitchStrategy": "<?php /* @escapeNotVerified */ echo $block->getVar('gallery_switch_strategy',
                     'Magento_ConfigurableProduct') ?: 'replace'; ?>",
-                "jsonSwatchImageSizeConfig": <?php /* @escapeNotVerified */
-                    echo $block->getJsonSwatchSizeConfig() ?>
+                "jsonSwatchImageSizeConfig": <?php /* @noEscape */ echo $block->getJsonSwatchSizeConfig() ?>
             }
         },
         "*" : {