Changes in the API:
- No more mandatory callbacks declared for each node anymore
heartbeatError
SDOtimeoutError
initialisation
preOperational
operational
stopped
post_sync
post_TPDO
canSend

- Fill function ptr to declare callbacks
CO_Data.heartbeatError
CO_Data.SDOtimeoutError
CO_Data.initialisation
CO_Data.preOperational
CO_Data.operational
CO_Data.stopped
CO_Data.post_sync
CO_Data.post_TPDO

- CanClose now takes CO_Data* as parameter
- canSend is provided to the stack directly by OS interface, no specific callback.

#ifndef UNIX_H_
#define UNIX_H_

#include "timerscfg.h"
#include "can_driver.h"
#include "data.h"
#ifdef WIN32
#include <windows.h>
typedef HINSTANCE LIB_HANDLE;
#else
#include <dlfcn.h>
typedef void* LIB_HANDLE;
#endif

UNS8 UnLoadCanDriver(LIB_HANDLE handle);
LIB_HANDLE LoadCanDriver(char* driver_name);
UNS8 canSend(CAN_PORT port, Message *m);
CAN_PORT canOpen(s_BOARD *board, CO_Data * d);
int canClose(CO_Data * d);

#endif /*UNIX_H_*/