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/src/frontend.c b/src/frontend.c
index 63ab356..09adbea 100644
--- a/src/frontend.c
+++ b/src/frontend.c
@@ -26,6 +26,7 @@
 #include <haproxy/api.h>
 #include <haproxy/chunk.h>
 #include <haproxy/frontend.h>
+#include <haproxy/http_ana.h>
 #include <haproxy/sample.h>
 #include <haproxy/stream_interface.h>
 #include <haproxy/task.h>
@@ -38,7 +39,6 @@
 #include <haproxy/fd.h>
 #include <proto/log.h>
 #include <haproxy/proto_tcp.h>
-#include <proto/http_ana.h>
 #include <proto/proxy.h>
 #include <proto/stream.h>