Milestone 3 - Filecoin IPLD block stream indexers

[i-norden]

• Implement database abstraction and concrete implementation for Postgres/TimescaleDB
  • Designed to support any type of relational database and database drivers in the future.
• Implement stock Filecoin indexers that target a relational database schema inspired by Lily database (see Milestone 1).
  • Can be configured with different schemas.
  • Can optionally output statements as .sql or .csv files or write directly over a database connection.
• Implement coordination service.
  • Composes and coordinates extractors and indexers over select subsets (or the entire set) of Filecoin data.
  • Can coordinate historical and realtime processing.
  • Potentially handled entirely by a docker-compose.
• Unit and integration testing.
• Basic documentation.