Staging instance, all changes can be removed at any time

Draft: Rewrite the Provenance service as a gRPC server in Rust, backed by Parquet (without Datafusion)

vlorentzrequested to merge
riir-no-datafusion into main

Based on !183 with all the Datafusion bits removed, replaced by manually reading Parquet files

Edited by vlorentz

Merge request reports