fix issue that in Debug mode LD instance doesn't show correctly its state after
continuation of FBD_Connector.
Previously state signals doesn't propogate through FBD_Connector.
int CheckRetainBuffer(void){ return 1;}void ValidateRetainBuffer(void){}void InValidateRetainBuffer(void){}void Retain(unsigned int offset, unsigned int count, void *p){}void Remind(unsigned int offset, unsigned int count, void *p){}