resolves #131 create output directory immediately (#167)

* resolves #131 create output directory immediately

Signed-off-by: tech4GT <varun.gupta1798@gmail.com>

* fix error if no steps are passed

Signed-off-by: tech4GT <varun.gupta1798@gmail.com>

* add exit message if steps not passed

Signed-off-by: tech4GT <varun.gupta1798@gmail.com>

* add test for creating output directory

test/cli.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const cliUtils = require('../src/CliUtils');
+const test = require('tape');
+
+test('Output directory is correctly generated',function(t){
+    cliUtils.makedir('./output/',function(){
+        require('fs').access('./output/.',function(err){
+            t.true(!err,"Access the created dir")
+            t.end()
+        });
+    });
+});