Create a -sauce template with headless set to false

To integrate with SauceLabs, we just have to pass HEADLESS=false. Since
the job template is very simple (it solely rely on defaults), copy paste
it and pass headless: false whenever we invoke it.

Creates a sauce job for VisualEditor.

Change-Id: I38a3feeada16d27a6ce67861a7376d6b2658385a