Minor fixes so I can actually build the base nif library.

niflib.cpp

@@ -20,6 +20,7 @@ All rights reserved.  Please see niflib.h for licence. */
 #include "obj/NiKeyframeData.h"
 #include "obj/NiStringExtraData.h"
 #include "gen/header.h"
+#include "gen/footer.h"
 
 namespace Niflib {
 

obj/NiTriBasedGeom.h

@@ -5,6 +5,7 @@ All rights reserved.  Please see niflib.h for licence. */
 #define _NITRIBASEDGEOM_H_
 
 #include "NiAVObject.h"
+#include "NiNode.h"
 
 // Include structures
 #include "../Ref.h"