title: SvgPanZoom How to move/pan with double finger touch
body: <p>I'm using SVG-PAN-ZOOM library to handle a map in a webpage.
  It works very well for desktop.</p>
  <p>For mobile devices I have followed this demo:
  <a href="https://bumbu.me/svg-pan-zoom/demo/mobile.html" rel="nofollow noreferrer">https://bumbu.me/svg-pan-zoom/demo/mobile.html</a></p>
  <p>But I have some troule, when the use try to scroll the page, the svg moves (pan).</p>
  <p>Then I tought it whould be great to enable the pan with the double finger touch like the google maps does.</p>
  <p>Is it possibile?</p>