title: how to add conditional template on ag-grid
body: <p>can I do a conditional template on the first column below?</p>
  
  <p>for example:
  If my row has score property and I want to hide the input when my score is above 70?</p>
  
  <pre><code>let columns = [
              { width: 30, suppressSorting: true, suppressMenu: true, template: '&lt;input type="checkbox"&gt;' },
              { headerName: "Score", filter: 'number', valueGetter: (params : any) =&gt;
                  params.data.traces ? (&lt;Alert&gt; params.data.traces[0]).severity : params.data.severity, width:70},
              { headerName: "Behaviour tags" },
              { headerName: "Host", field: "host_name" },
              { headerName: "Group Id", cellRenderer: 'group', width:140 },
              { headerName: "Comments",width:290 }
          ];
  </code></pre>