DUI: show tooltip during navigation

Everytime method button got focus, tooltip should be shown.  In this case tooltip should not disappear until button will lose focus.
Also topresult must have tooltip as usual button.

Reviewers
@Benglin ,@vmoyseenko, please take a look.
Link to YouTrack:
[MAGN-5283](http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-5283) DUI: Show tooltip for top result
[MAGN-5280](http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-5280) DUI: Show Tooltip when navigate to member