lib:
- Move fill/orderbook filters out of shared lib into the services
- Add some common structs to shared lib
- Add libraries to fills/orderbook services
feeds:
- Add graceful exit handling
- Publish single perp fill event for both maker and taker
- Disable openbook fills processing
- Fix perp fill event quantity decimals
- Handle revoked fills in postgres
- Allow subscriptions to multiple and all markets, and accounts
- Add event queue head updates
- mango-fills-connector: Is about getting data from rpc, websockets,
geyser. Shall be reused in v4/client and other places.
- mango-fills-lib: is a library we'll probably remove
- service-* is the individual services