Proposal - Sort/Aggregate the "Type" column output

[vlauciani]

Analysing a huge input file, could be useful to "sort"/"aggregate" the "Type" column ("errors", "warning", etc) to show first the same type.

As shown in the image, I'd like to search/view/solve the "errors" but it is very difficult to find them in more than 3000 lines.

Adding a "sort"/"aggregate" option clicking on the "type" title, I should see all the "errors" on the top.