[Enhancement] Build-Depends on GNU autogen

[fklassen]

Describe the enhancement

As reported in Debian Bug#1076243: tcpreplay: Build-Depends on GNU autogen

Source: tcpreplay
Version: 4.4.4-1
Severity: normal
User: ametzler@debian.org
Usertags: autogen-eol

Good morning,

tcpreplay build-depends on GNU autogen, which has reached EOL and IMHO
is unlikely to be revived.

The best replacement for autogen's AutoOpts part I know (but I do not
know everything) is the toolchain gnutls upstream built for their
conversion:

1. One-time onversion of .def to json with
   https://gitlab.com/dueno/parse-autogen and some handholding.
2. Build-time generation from json input of option-parser and docs with
   https://gitlab.com/gnutls/cligen (python).

cu Andreas