Added comments (w/Lorenzo)

.gitlab-ci.yml

cmd/query-service/main.go

deployments/arangodb-deployment.yml

deployments/arangodb-hpa.yml

deployments/neo4j-deployment.yml

deployments/neo4j-hpa.yml

development/docker-compose.yaml

integration-testing/pod.yml

internal/drivers/rpcdriver/GetDatabaseInfo.go

.../drivers/rpcdriver/databaseInfoService/databaseInfo.pb.go

...ers/rpcdriver/databaseInfoService/databaseInfo_grpc.pb.go

internal/drivers/rpcdriver/grpcdriver.go

internal/drivers/rpcdriver/interface.go

internal/entity/databaseInfo.go

internal/entity/document.go

internal/entity/errors.go

internal/entity/messageStruct.go

internal/usecases/consume/consume.go

internal/usecases/consume/consume_test.go

internal/usecases/consume/getHeaders.go