BlockDecoder transforms a `bstream.Block` payload into a proper `deth.Block` value.

LimitConsoleLength ensure that `Console` field on `pbcodec.ActionTrace` are never bigger than `maxByteCount` bytes.

TODO: At some point, the interface of a ConsoleReader should be re-done.

ABIDecoder holds the ABI cache, controls it and process transaction on the fly parallel decoding the various elements that needs ABI decoding in-place in the data structure.

BlockReader reads the dbin format where each element is assumed to be a `bstream.Block`.

BlockWriter reads the dbin format where each element is assumed to be a `bstream.Block`.

ConsoleReader is what reads the `nodeos` output directly.