Directory based visualization of findings & Code Browsing view

[dkrupp]

Show the number of findings based on files and directories in an aggregated way.

The source code directory hierarchy is the natural view for the programmer about the source code.
One could easily find the reports for a certain file.
Users could see from which directories the highest number of warnings originate from.
Usually a user is a code owner of files under certain directories. It would be easier to get an overview of the reports under such owned folders.

The directory hierachy should be browseable in a midnight commander style. Next to the files/directories, the outstanding reports numbers should be printed.

The filters should work on this view.
Open question:
-how the fileters should interact with this view?
-The visualization should be restricted to a single run (?) otherwhise the same file is represented in multiple views.