Serializable Subgrounds Queries

[0xMochan]

Is your feature request related to a problem? Please describe. I would like to build my queries and execute them separately.

Describe the solution you'd like Serializable queries

Describe alternatives you've considered Saving queries as code and running it separately

Additional context

• Serializing synthetic fields will require pickle (or dill to be safer)
  • Technically, this is arbitrary code execution so by default, Synthetic support would be off with a flag to turn it on (and a warning).
  • This would either happen on-save and on-load (with flags and warnings in appropriate locations).

Implementation checklist

• [ ] Task 1