add time / meta info to SMC / meta info samplers in general

[florianhartig]

SMC doesn't record the time - adjust the SMC to record the same info as all the samplers.

In general, I think it would be good to have an extra slot in the samplers to record meta info, such as runtime, operating system, packages etc (MCMCs record most of this already, but in settings)

[MaximilianPi]

I think, this was the intention of our "info" field, right?

[florianhartig]

yes, right, I had the feeling that there was something going on there - so this is https://github.com/florianhartig/BayesianTools/issues/118

[MaximilianPi]

I think we had some issues about what we should move to the info field and it was postponed

[florianhartig]

I'm trying to finalize 0.1.5 now and we should do this for 0.1.6