title: How to create stacked icons using angular material icons?
body: <p>I have found "Material Design Iconic Font" library which is similar to md-icon and allow to create a stacked icon:
  <a href="http://zavoloklom.github.io/material-design-iconic-font/examples.html" rel="noreferrer">http://zavoloklom.github.io/material-design-iconic-font/examples.html</a></p>
  
  <p>But wasn't able to create a stacked icon combining angular material icons.
  <a href="https://material.angularjs.org/latest/api/directive/mdIcon" rel="noreferrer">https://material.angularjs.org/latest/api/directive/mdIcon</a></p>
  
  <p>I'm already using angular material icons in my project, and don't want to include another library just for stacked icon.</p>
  
  <p>Is there any way/work around we can combine md-icons to create a stacked angular material icons?</p>