Add template for JS

Author: jhonber

template.js

@@ -0,0 +1,13 @@
+'use strict'
+
+const io = require('./lib/io')(main)
+const readline = io.readline
+const print = io.print
+
+const getLine = () => readline().split(' ')
+const getInts = () => getLine().map(n => parseInt(n))
+const getInt = () => readInts()[0]
+
+// main()
+const main = () => {
+}