chore(eslint): add eslint config file

.eslintrc.js

@@ -0,0 +1,30 @@
+module.exports = {
+    "globals": {
+        "describe": true,
+        "beforeEach": true,
+        "it": true,
+        "expect": true
+    },
+    "env": {
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "rules": {
+        "indent": [
+            "error",
+            2
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ]
+    }
+};