Feature request - Create calculation service for gavel voting system

Usign https://github.com/anishathalye/gavel python app, create an alternative backup system, which can be used as a service for calculating the scores generated from the votes submitted on the Junction Platform

**Is your feature request related to a problem? Please describe.**
Currently the Gavel system rewritten on JS is running on the same thread as the Junction Platform blocking the app of serving users while each calculation runs

**Describe the solution you'd like**
Offload the calculations to be performed by the original Gavel algorithm, as a API service, separate from the main application