Fix issue #204 : New context menu item for filters "Find in Filters..."
Shows filter window if needed
Sets search string in window to CLSID of clicked Filter
If not found sets category and merit to 'ANY'
If any filters found, select first filter found (e.g. DirectSound device finds 3 filters for the same CLSID on my system).
Clear displayed filter details when category, merit or search string changed.


git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@291 c2f33eb2-41b2-391d-4cb4-d9d0608729ba