initial commit: working mqtt example

.eslintrc

@@ -0,0 +1,28 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 8,
+    "sourceType": "module"
+  },
+  "extends": [
+    "airbnb",
+    "prettier"
+  ],
+  "plugins": [
+    "prettier",
+    "import"
+  ],
+  "rules": {
+    "prettier/prettier": "error",
+    "import/no-extraneous-dependencies": [
+      "error", {
+        "devDependencies": [
+          "test/**",
+          "packages/**/test/**",
+          "packages/**/*.test.js"
+        ],
+        "optionalDependencies": false,
+        "peerDependencies": false
+      }
+    ],
+  }
+}