graphics/electricsheep: mark BROKEN

In file included from electricsheepguiMyDialog2.cpp:204:
In file included from /usr/local/include/boost/filesystem.hpp:16:
In file included from /usr/local/include/boost/filesystem/path.hpp:21:
/usr/local/include/boost/filesystem/detail/path_traits.hpp:495:16: error: call to '_check_convertible_to_path_source' is ambiguous

Reported by: pkg-fallout