fixed problems reported by certification testing : vendor identifier acces rights (now read only), and bvlc_maintenance timer was increasing too fast.
/* Beremiz' header file for use by extensions */
#include "iec_types.h"
#define LOG_LEVELS 4
#define LOG_CRITICAL 0
#define LOG_WARNING 1
#define LOG_INFO 2
#define LOG_DEBUG 3
extern unsigned long long common_ticktime__;
#ifdef TARGET_LOGGING_DISABLE
#define LogMessage(level, buf, size)
#else
int LogMessage(uint8_t level, char* buf, uint32_t size);
#endif
long AtomicCompareExchange(long* atomicvar,long compared, long exchange);