Add object time_utils. (#359)

src/context/test/CMakeLists.txt

src/daemons/CMakeLists.txt

src/executor/test/CMakeLists.txt

src/mock/test/CMakeLists.txt

src/optimizer/test/CMakeLists.txt

src/parser/test/CMakeLists.txt

src/util/test/CMakeLists.txt

src/validator/test/CMakeLists.txt

src/visitor/test/CMakeLists.txt