https://bugs.webkit.org/show_bug.cgi?id=103781

Reviewed by Yury Semikhatsky.

- make console messages produced by console.timeEnd() TimingMessageType & DebugMessageLevel;
- add console filter for Debug messages;

* inspector/ConsoleMessage.cpp:
(WebCore::messageTypeValue):
* inspector/Inspector.json:
* inspector/InspectorConsoleAgent.cpp:
(WebCore::InspectorConsoleAgent::stopTiming):
* inspector/front-end/ConsoleMessage.js:
(WebInspector.ConsoleMessageImpl.prototype.toMessageElement):
* inspector/front-end/ConsoleView.js:
(WebInspector.ConsoleView.prototype.):
(WebInspector.ConsoleView.prototype.filter):
* inspector/front-end/inspector.css:
(.console-warning-level, .console-error-level, .console-log-level, .console-debug-level):
(.filter-all .console-debug-level, .filter-debug .console-debug-level):
(.filter-all .console-debug-level.repeated-message, .filter-debug .console-debug-level.repeated-message):
* page/ConsoleTypes.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@136448 268f45cc-cd09-0410-ab3c-d52691b4dbfc