metadata for broker

broker/src/asapo_broker/database/mongodb.go

broker/src/asapo_broker/database/mongodb_test.go

broker/src/asapo_broker/server/get_meta.go

broker/src/asapo_broker/server/get_meta_test.go

broker/src/asapo_broker/server/listroutes.go

tests/automatic/broker/CMakeLists.txt

tests/automatic/broker/get_meta/CMakeLists.txt

tests/automatic/broker/get_meta/check_linux.sh

tests/automatic/broker/get_meta/check_windows.bat

tests/automatic/mongo_db/upsert/upsert_mongodb.cpp