Return snapshot ID on update

source/RobotAPI/libraries/armem/memory/CoreSegment.cpp

source/RobotAPI/libraries/armem/memory/CoreSegment.h

source/RobotAPI/libraries/armem/memory/Entity.cpp

source/RobotAPI/libraries/armem/memory/Entity.h

source/RobotAPI/libraries/armem/memory/EntitySnapshot.cpp

source/RobotAPI/libraries/armem/memory/EntitySnapshot.h

source/RobotAPI/libraries/armem/memory/EntityStorage.cpp

source/RobotAPI/libraries/armem/memory/EntityStorage.h

source/RobotAPI/libraries/armem/memory/Memory.cpp

source/RobotAPI/libraries/armem/memory/Memory.h

source/RobotAPI/libraries/armem/memory/ProviderSegment.cpp

source/RobotAPI/libraries/armem/memory/ProviderSegment.h