fix bug and improve performance of timeline diagram

simulators/c++2/src_simulator/arch/CPU.cpp

simulators/c++2/src_simulator/arch/CPU.h

simulators/c++2/src_simulator/arch/FPGA.cpp

simulators/c++2/src_simulator/arch/FPGA.h

simulators/c++2/src_simulator/arch/SchedulableDevice.cpp

simulators/c++2/src_simulator/arch/SchedulableDevice.h

simulators/c++2/src_simulator/definitions.h

simulators/c++2/src_simulator/sim/SimServSyncInfo.h

simulators/c++2/src_simulator/sim/Simulator.cpp

simulators/c++2/src_simulator/sim/Simulator.h

...ava/tmltranslator/DiplodocusSimulatorTerminationTest.java

...mltranslator/expected/expected_get_generated_timeline.txt