title: Switch between editable and non editable mode in ag-grid
body: <p>I am using ag-grid to display and modify data.How Can I switch between editable and non editable for the hole ag-grid. Can I do this with the grid api.</p>
  
  <p>this is my default config:</p>
  
  <pre><code>this.defaultDefs = {           
      suppressMovable: true,     
      enableColResize: true,     
      editable: true,            
  };     
  </code></pre>
  
  <p>Can I change editable dynamically?</p>