Web Inspector: Network Waterfall column should redraw when adding/removing new columns

Web Inspector: Network Waterfall column should redraw when adding/removing new columns
https://bugs.webkit.org/show_bug.cgi?id=193696
<rdar://problem/47464149>

Patch by Joseph Pecoraro <pecoraro@apple.com> on 2019-01-23
Reviewed by Devin Rousso.

* UserInterface/Views/TableColumn.js:
(WI.TableColumn.prototype.get needsReloadOnResize):
* UserInterface/Views/NetworkTableContentView.js:
(WI.NetworkTableContentView.prototype.initialLayout):
Mark the waterfall column as sensitive to any resizes.

* UserInterface/Views/Table.js:
(WI.Table.prototype.showColumn):
(WI.Table.prototype.hideColumn):
Update column widths and reload any columns that may be sensitive to resizes.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@240347 268f45cc-cd09-0410-ab3c-d52691b4dbfc