results.webkit.org: Move legend into sidebar

results.webkit.org: Move legend into sidebar
https://bugs.webkit.org/show_bug.cgi?id=201258

Rubber-stamped by Aakash Jain.

* resultsdbpy/resultsdbpy/view/static/js/timeline.js:
(Legend): Make the legend vertical instead of horizontal, add ToolTip to dots in the legend.
* resultsdbpy/resultsdbpy/view/static/js/tooltip.css: Add left and right tooltip arrows.
* resultsdbpy/resultsdbpy/view/static/js/tooltip.js:
(isPointInElement): Make bound check include borders.
(_ToolTip.toString): Add left/right cases.
(_ToolTip.prototype.setByElement): Set the tooltip location given an element.
* resultsdbpy/resultsdbpy/view/templates/search.html: Put the legend into the sidebar.
* resultsdbpy/resultsdbpy/view/templates/suite_results.html: Ditto.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@249443 268f45cc-cd09-0410-ab3c-d52691b4dbfc