fixed some build problems

dlls/nvault/Journal.cpp

@@ -1,4 +1,7 @@
 #include <stdio.h>
+#if defined __linux__
+#include <unistd.h>
+#endif
 #include "Journal.h"
 
 Journal::Journal(const char *file)

dlls/nvault/NVault.cpp

@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include "amxxmodule.h"
 #include "NVault.h"
 #include "Binary.h"

dlls/nvault/amxxapi.cpp

@@ -11,6 +11,8 @@
 
 #ifdef __linux__
 #include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 #else
 #include <direct.h>
 #endif