OpenSystemsDevelopment / qpdf

Also, apply limit in dct_fuzzer

Amend fuzz future

Refactor QPDF::parse_xrefEntry

QPDF::processXRefStream

Change the processed Index array to a vector of <first object, number of
entries> pairs.

Create set without creation of an intermediate vector.

Move reading of the entry from read_xrefTable to parse_xrefEntry.

Split parse_xrefEntry into two new methods read_xrefEntry and
read_bad_xrefEntry. read_xrefEntry is optimised for reading
correct entries. To handle incorrect entries it calls read_bad_xrefEntry,
which is largely unchanged from parse_xrefEntry.

Use QPDF_Stream::writeStreamJSON.
Factor out the json_stream_data == qpdf_sj_file case.

Create an alternative to getJSON to allow an object handle to be written as JSON without the overhead of creating a JSON object.

Create a simple utility class for writing JSON to a pipeline.

The code accepted values other than /Yes but still used /Yes as the
checked value instead of obeying the normal appearance dictionary.

Accept --file and --range as named parameters in additional to
allowing positional arguments. This is in preparation for adding
additional flags.