documentation expansion

[Viktor Andreev]

man warzone2100 contains less information than warzone2100 --help.
It would be nice to add to the generation
https://github.com/Warzone2100/warzone2100/blob/a2e1212f9a6420774935a29e7e0d7b55a7aa3c1f/doc/warzone2100.6.asciidoc
automatic substitution from

warzone2100/src/clparse.cpp

Line 383 in a2e1212

 static const struct poptOption optionsTable[] = 

You also need to generate information on cheats (debug commands)

warzone2100/src/cheat.cpp

Line 48 in a2e1212

 static CHEAT_ENTRY cheatCodes[] = 

[mirror176]

Last I checked, the cheats need a bit of rework/review too as some didn't seem to work as intended. Documentation could consider clearly noting ones that are unstable or have large performance impact and probably shouldn't list broken ones.