Save file with configuration properties at the time that the workflow was started that is decoupled from the .bonsai file

[cjsha]

This allows users to know what experimental parameters were used during a given data acquisition session even if the bonsai workflow changes later. Otherwise people won't know what parameters were used and what parameters to use to properly load their data. Also, it's possible bonsai can run a version of the workflow that hasn't been saved yet bonsai-rx/bonsai#2077 which allows the possibility for the user to perform data acquisition without ever saving the parameters for that data acquisition session.