Add basic TS config (is this needed?)

Author: afontcu

tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "outDir": "dist",
+    "module": "esnext",
+    "moduleResolution": "node",
+    "esModuleInterop": true
+  },
+  "include": ["src"]
+}