REORG: include: move pattern.h to haproxy/pattern{,-t}.h
It was moved as-is, except for extern declaration of pattern_reference.
A few C files used to include it but didn't need it anymore after having
been split apart so this was cleaned.
diff --git a/src/http_act.c b/src/http_act.c
index d2babb1..f2b803e 100644
--- a/src/http_act.c
+++ b/src/http_act.c
@@ -23,6 +23,7 @@
#include <haproxy/http.h>
#include <haproxy/http_htx.h>
#include <haproxy/http_rules.h>
+#include <haproxy/pattern.h>
#include <haproxy/pool.h>
#include <haproxy/regex.h>
#include <haproxy/tools.h>
@@ -36,7 +37,6 @@
#include <haproxy/arg.h>
#include <proto/log.h>
#include <proto/http_ana.h>
-#include <proto/pattern.h>
#include <proto/stream_interface.h>
/* Release memory allocated by most of HTTP actions. Concretly, it releases