Conversione in Typescript completata.

Manca ancora qualche errore.

src/components/HelloWorld.ts

@@ -0,0 +1,13 @@
+import { Component, Vue } from 'vue-property-decorator';
+import WithRender from './hello-world.html';
+
+
+/*
+@WithRender
+@Component
+export default class HelloWorld extends Vue {
+
+}
+
+
+*/