REORG: include: move fd.h to haproxy/fd{,-t}.h
A few includes were missing in each file. A definition of
struct polled_mask was moved to fd-t.h. The MAX_POLLERS macro was
moved to defaults.h
Stdio used to be silently inherited from whatever path but it's needed
for list_pollers() which takes a FILE* and which can thus not be
forward-declared.
diff --git a/src/debug.c b/src/debug.c
index 9aef05b..bf2bc1a 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -31,7 +31,7 @@
#include <types/signal.h>
#include <proto/cli.h>
-#include <proto/fd.h>
+#include <haproxy/fd.h>
#include <proto/hlua.h>
#include <proto/stream_interface.h>
#include <proto/task.h>