REORG: include: move http_ana.h to haproxy/http_ana{,-t}.h

It was moved without any change, however many callers didn't need it at
all. This was a consequence of the split of proto_http.c into several
parts that resulted in many locations to still reference it.
diff --git a/contrib/debug/flags.c b/contrib/debug/flags.c
index 905cc2f..15136a3 100644
--- a/contrib/debug/flags.c
+++ b/contrib/debug/flags.c
@@ -3,7 +3,7 @@
 
 #include <haproxy/channel-t.h>
 #include <haproxy/connection-t.h>
-#include <types/http_ana.h>
+#include <haproxy/http_ana-t.h>
 #include <types/stream.h>
 #include <haproxy/stream_interface-t.h>
 #include <haproxy/task-t.h>