REORG: include: move base64.h, errors.h and hash.h from common to to haproxy/
These ones do not depend on any other file. One used to include
haproxy/api.h but that was solely for stddef.h.
diff --git a/src/connection.c b/src/connection.c
index fd6a274..a30a2dd 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -15,7 +15,7 @@
#include <haproxy/api.h>
#include <common/cfgparse.h>
#include <common/namespace.h>
-#include <common/hash.h>
+#include <haproxy/hash.h>
#include <common/net_helper.h>
#include <proto/connection.h>