logging for broker

.gitignore

broker/src/hidra2_broker/logger/logger.go

broker/src/hidra2_broker/logger/logrus_logger.go

broker/src/hidra2_broker/logger/mock_logger.go

broker/src/hidra2_broker/main/broker.go

broker/src/hidra2_broker/server/get_next.go

broker/src/hidra2_broker/server/get_next_test.go

broker/src/hidra2_broker/server/server_nottested.go

broker/src/hidra2_broker/server/server_test.go

broker/src/hidra2_broker/server/statistics.go

broker/src/hidra2_broker/server/statistics_test.go

config/fluentd/fluentd.conf

examples/worker/getnext_broker/check_linux.sh

examples/worker/getnext_broker/check_windows.bat

tests/automatic/broker/check_monitoring/check_linux.sh

tests/automatic/broker/get_next/check_linux.sh

tests/automatic/broker/get_next/check_windows.bat

tests/automatic/broker/read_config/check_linux.sh

tests/automatic/broker/read_config/check_windows.bat

tests/automatic/full_chain/simple_chain/check_linux.sh