Verify that the DllFile class correctly compares real .dll files
Verify that the DllFile class correctly compares real .dll files

When recompiling an empty .c file into a .dll, it is a pretty surprising
thing for the unsuspecting developer that the result is not byte-wise
identical. The reason is that several time date stamps are part of the
.dll file format, and that there is a checksum, too, that changes with
the time date stamps, too.

To handle such cases, we just added a class to compare .dll files and
report whether they are functionally identical.

This commit adds a unit test.

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

imagejan/imagej-updater