Pull request #3693: js_norm: update PDF tokenizer to use glue input streambuf

Pull request #3693: js_norm: update PDF tokenizer to use glue input streambuf

Merge in SNORT/snort3 from ~OSERHIIE/snort3:js_pdf_fixup to master

Squashed commit of the following:

commit a1ea7641078ab9622838882605cfd2ffbf012e84
Author: Oleksandr Serhiienko <oserhiie@cisco.com>
Date:   Mon Dec 5 15:08:20 2022 +0100

    js_norm: fix pdf_tokenizer_test on FreeBSD platform

commit af4be627c44f45dcae8fc24fe085ff4c03d972bf
Author: Oleksandr Serhiienko <oserhiie@cisco.com>
Date:   Mon Dec 5 15:05:54 2022 +0100

    js_norm: update PDF tokenizer to use glue input streambuf

        * js_norm: update PDF tokenizer EOF rule to cover all starting conditions
        * http_inspect: update PDF JSNorm to use istreambuf_glue