Add a test to validate current method of updating column widths: `setColumns`
Add a test to validate current method of updating column widths: `setColumns`

coatue/SlickGrid,coatue-oss/slickgrid2,SimplGy/SlickGrid,GerHobbelt/SlickGrid,coatue/SlickGrid,coatue/SlickGrid,GerHobbelt/SlickGrid,coatue-oss/slickgrid2,GerHobbelt/SlickGrid,SimplGy/SlickGrid