Store virtual and physical distance marks separately Virtual distance marks on waterway axis always have an ISRS location code, which is their natural primary key, but which other distance marks do not (always) have. catdis and position_code are constant for distance marks on fairway axis and do not need to be stored. Btw. add a previously missing field for the name of the ENC the information is based on.

#!/usr/bin/env bash
exec 2>&1 ./cmd/gemma/gemma --config gemma.toml