title: Auto Size all columns to fit content
body: <p>All my searches turned up for <code>sizeColumnsToFit</code> and <code>autoSizeColumns</code> which is not what I want.</p>
  
  <p>My grids have many columns, so it scroll horizontal which is fine </p>
  
  <p>But I cannot know in advance what would be the most space needed for the widest text in a column, so want the  grid to auto size all columns to accommodate for whatever is the longest line of text in the cell.</p>
  
  <p>Can one do that?  (pretty much like have <code>nowrap</code> on a html table column, not that <code>ag-grid</code> wrap text, it just hide what is too long)</p>