outputFull does not record (or, reload?) pedigree IDs about slim

[bhaller]

This is now fixed, although some testing remains to be done. Note that writing out of pedigree IDs is optional, and is off by default, to preserve backward compatibility – not so much with SLiM itself (why would someone write out a new-format output file and then read it in with an old version of SLiM?), but with other scripts/programs that might parse SLiM's outputFull() formatted output for post-processing. To avoid breaking such scripts when people upgrade to SLiM 3.5, the new pedigree ID field needs to be off by default. If people want it, it's easy to turn on. :->

I did not add in saving of other state information – tag and tagF, setValue() key/value pairs, etc. There's lots of side state on objects now, and at present the file I/O stuff is just not set up to persist it easily, so fixing that would be a much bigger project. (You can open an issue on that if you want, but I'm certainly aware of it. :->)

[bhaller]

Yeah. As the doc discusses, there are actually lots of things that outputFull() doesn't save; it's a bigger problem than just pedigree IDs. Which should be fixed.

[bhaller]

This bug is higher priority now that pedigree tracking is always enabled.