OpenSystemsDevelopment / qpdf

Change from unsigned long to int since we pass enumerated type values
to this field.

Based on sizeof(size_t). Assumes 64 if not 32.

Bounding box X coordinates could be truncated, causing them to be off
by a fraction of a point. This was most likely not visible, but it was
still wrong.

Temporarily skip fuzz tests on Windows. There are Windows-specific
failures to address later.

This is the set of files from the latest corpus of running the older
fuzzer (qpdf_read_memory_fuzzer) at the time of adding the new fuzzer
(qpdf_fuzzer) after running a merge operation to minimize the corpus.

There are more to handle, but this resolves an issue already caught by
oss-fuzz.

On read, ignore /DecodeParms when empty list; on write, delete it.
Some files have been found that include an empty list for
/DecodeParms, but this is not technically compliant with the spec, and
the only sensible interpretation is to treat it as if there are no
decode parameters.

Remove dependency on the behavior of perl for reliable creation of
Unicode file names on Windows.