Changes in the API of simulation
· snapshot removed by now to impriove performance, retake it when use the System.loadLibrary mehtods
· there are in simulation three main methods: init, doStep and terminate. it is becuase instantiate and initialize are used together and terminate and free slave are used together too.
FMI v2 not supported yet

the second version has major changes in methods names so first will stabilize the v1.0 and then implement support to v2