Comparing resulting files

It would be nice and cozy to have a macro for file result comparision.

A potential body for the file comparision test macro:

std::ifstream ifs1(TEST_SRC_DIR "input/file/path");
std::ifstream ifs2(TEST_SRC_DIR "gold/file/path");

std::istream_iterator b1(ifs1), b2(ifs2), e;

BOOST_CHECK_EQUAL_COLLECTIONS(b1, e, b2, e);