fix erroneously removed includes in beos window header

beos/gui.cpp

@@ -1058,7 +1058,7 @@ int gui_init_replicant(int argc, char** argv)
 		&beos_misc_table,
 		beos_window_table,
 		beos_download_table,
-		&beos_clipboard_table,
+		beos_clipboard_table,
                 &beos_fetch_table,
                 NULL, /* use POSIX file */
                 NULL, /* default utf8 */

beos/window.h

@@ -19,6 +19,10 @@
 #ifndef NETSURF_BEOS_WINDOW_H
 #define NETSURF_BEOS_WINDOW_H 1
 
+#include <View.h>
+#include <Window.h>
+#include <NetPositive.h>
+
 extern struct gui_window_table *beos_window_table;
 extern struct gui_clipboard_table *beos_clipboard_table;