OpenFTTH address importer DAWA

This creates events out of change-sets from DAWA and inserts them into the OpenFTTH system.

Testing

Running all tests

dotnet test

Running unit tests

dotnet test --filter Category=Unit

Running integration tests

dotnet test --filter Category=Integration

Setting up Postgres for running integration-tests.

docker run --name test-postgres \
    -e POSTGRES_USER=postgres \
    -e POSTGRES_PASSWORD=postgres \
    -e POSTGRES_DB="master" \
    -p 5432:5432 \
    -d postgres