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

A few includes had to be added, namely list-t.h in the type file and
types/proxy.h in the proto file. actions.h was including http-htx.h
but didn't need it so it was dropped.
diff --git a/src/http_ana.c b/src/http_ana.c
index 3065e38..d26b9a4 100644
--- a/src/http_ana.c
+++ b/src/http_ana.c
@@ -13,6 +13,7 @@
 #include <haproxy/api.h>
 #include <haproxy/base64.h>
 #include <haproxy/http.h>
+#include <haproxy/http_htx.h>
 #include <haproxy/htx.h>
 #include <haproxy/net_helper.h>
 #include <haproxy/regex.h>
@@ -26,7 +27,6 @@
 #include <proto/checks.h>
 #include <proto/connection.h>
 #include <proto/filters.h>
-#include <proto/http_htx.h>
 #include <proto/log.h>
 #include <proto/http_ana.h>
 #include <proto/proxy.h>