added PWA support

source/PWAGenerator.js

@@ -0,0 +1,18 @@
+const pwaAssetGenerator = require('pwa-asset-generator');
+
+(async() => {
+    const { savedImages, htmlMeta, manifestJsonContent } = await pwaAssetGenerator.generateImages(
+        './src/assets/pic.png',
+        "./src/assets/favicon", {
+            background: "linear-gradient(40deg, #f0c5cf 0%, #9bccd0 100%)",
+            scrape: true,
+            manifest: "./src/assets/manifest.json",
+            favicon: true,
+            splashOnly: false,
+            portraitOnly: false,
+            log: true
+        });
+})();
+
+// Access to static data for Apple Device specs that are used for generating launch images
+const appleDeviceSpecsForLaunchImages = pwaAssetGenerator.appleDeviceSpecsForLaunchImages;