parser-inc: add more POSIX system header stubs

dtool/src/parser-inc/dirent.h

@@ -0,0 +1,3 @@
+typedef struct __dirstream DIR;
+struct dirent;
+typedef unsigned long ino_t;

dtool/src/parser-inc/sys/inotify.h

@@ -0,0 +1 @@
+struct inotify_event;

dtool/src/parser-inc/sys/ioctl.h

@@ -0,0 +1,3 @@
+struct winsize;
+struct termio;
+

dtool/src/parser-inc/sys/mman.h

@@ -0,0 +1,3 @@
+#include <sys/types.h>
+
+struct posix_typed_mem_info;

dtool/src/parser-inc/sys/select.h

@@ -0,0 +1 @@
+#include <sys/time.h>

dtool/src/parser-inc/sys/sysinfo.h

@@ -0,0 +1 @@
+struct sysinfo;