Converted utils & api to typescript. Webpack setup

tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    "moduleResolution": "node",
+    "strict": false,
+    "jsx": "preserve",
+    "sourceMap": true,
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "lib": ["esnext", "dom"],
+    "outDir": "lib",
+    "baseUrl": "/",
+    "paths": {
+      "@": ["src"]
+    }
+  },
+  "include": [
+    "src/**/*.js",
+    "src/**/*.ts",
+    "src/**/*.d.ts",
+    "src/**/*.tsx",
+    "src/**/*.vue"
+  ],
+  "exclude": ["node_modules"]
+}