Milestone 1

[shrnkld]

Goal: Basic functionality same as XQuery 1.0, improved performance & code, added state management

To do:

• [x] overhaul project/code structure - modular approach
• [x] add redis cache
• [x] shared between all workers
• [x] add multiprocessing
• [x] add proper state management
• [x] handle re-orgs (simple strategy: only index up to "latest - N safety blocks") - handle errors/crashes
• [x] handle start/stop ("resume" feature)
• [x] rework event log fetching, filtering (focus on improving speed) - make use of 'eth_getLogs'
• [x] keep database model and event processing from XQuery 1.0
• [x] single table database for simplicity

QA: - requires more detail from the dev

• [ ] redis cache implemented
• [ ] shared between all workers ?
• [ ] multiprocessing
• [ ] state management ?
• [ ] handles re-orgs (simple strategy: only index up to "latest - N safety blocks") - handle errors/crashes
• [ ] handles start/stop ("resume" feature)
• [ ] rework event log fetching, filtering (focus on improving speed) - make use of 'eth_getLogs'
• [ ] database model and event processing from XQuery 1.0
• [ ] single table database for simplicity