Adding histogram for simulation times

.idea/libraries/jfreechart_1_6_0.xml

executablecode/Makefile.src

launcher/src/main/launcher.iml

libs/jfreechart-1.6.0.jar

modeling/AVATAR/CoffeeMachine_Avatar.xml

...artranslator/directsimulation/AvatarSimulationRunner.java

...nslator/directsimulation/AvatarSimulationTransaction.java

...lator/directsimulation/AvatarSpecificationSimulation.java

src/main/java/cli/Action.java

...ractivesimulation/AvatarInteractiveSimulationActions.java

...vatarinteractivesimulation/AvatarSaveCommandsToolBar.java

...nteractivesimulation/AvatarSimulationStatisticsPanel.java

...eractivesimulation/JFrameAvatarInteractiveSimulation.java

src/main/java/ui/util/IconManager.java

src/main/resources/ui/util/savecsv24.gif

ttool-cli/ttool-cli.iml

ttool/build.gradle

ttool/src/main/ttool.iml

ttool/ttool.txt