Reviewed by Yury Semikhatsky.

        Web Inspector: add "Locally modified" group into the resource panel.
        https://bugs.webkit.org/show_bug.cgi?id=50005

        * English.lproj/localizedStrings.js:
        * inspector/front-end/ResourcesPanel.js:
        (WebInspector.ResourcesPanel):
        (WebInspector.ResourcesPanel.prototype.reset):
        (WebInspector.ResourcesPanel.prototype.addLocallyModifiedRevision):
        (WebInspector.ResourcesPanel.prototype._innerShowView):
        (WebInspector.BaseStorageTreeElement.prototype.set titleText):
        (WebInspector.LocallyModifiedResourceTreeElement):
        (WebInspector.LocallyModifiedResourceTreeElement.prototype.onselect):
        (WebInspector.LocallyModifiedResourceTreeElement.prototype.gcRevisions):
        (WebInspector.LocallyModifiedRevisionTreeElement):
        (WebInspector.LocallyModifiedRevisionTreeElement.prototype.onattach):
        (WebInspector.LocallyModifiedRevisionTreeElement.prototype.onselect):
        (WebInspector.LocallyModifiedRevisionTreeElement.prototype._ondragstart):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72654 268f45cc-cd09-0410-ab3c-d52691b4dbfc