Update .eslintrc.json and add prettier support

Add pre-commit hook to lint staged files
Add some eslint plugins

Gitlab: #2

Change-Id: Iea7800b66992dcb4b87501544647aedafe07a509
diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 0000000..3f584f6
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1,4 @@
+{
+  "printWidth": 120,
+  "singleQuote": true
+}