automatic backtracing for latency

src/main/java/ui/MainGUI.java

...eractivesimulation/JFrameAvatarInteractiveSimulation.java

src/main/java/ui/avatarsmd/AvatarSMDReceiveSignal.java

src/main/java/ui/avatarsmd/AvatarSMDSendSignal.java

...ui/interactivesimulation/JFrameInteractiveSimulation.java

src/main/java/ui/tmlad/TMLADReadChannel.java

src/main/java/ui/tmlad/TMLADWriteChannel.java