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/include/types/action.h b/include/types/action.h
index a102b2b..c70fcf7 100644
--- a/include/types/action.h
+++ b/include/types/action.h
@@ -26,7 +26,6 @@
 
 #include <types/applet.h>
 #include <types/stick_table.h>
-#include <types/http_htx.h>
 
 enum act_from {
 	ACT_F_TCP_REQ_CON, /* tcp-request connection */
diff --git a/include/types/http_ana.h b/include/types/http_ana.h
index 4a1a9cd..4dd8e33 100644
--- a/include/types/http_ana.h
+++ b/include/types/http_ana.h
@@ -26,7 +26,7 @@
 #include <haproxy/http-t.h>
 
 #include <types/channel.h>
-#include <types/http_htx.h>
+#include <haproxy/http_htx-t.h>
 
 /* These are the flags that are found in txn->flags */
 
diff --git a/include/types/http_htx.h b/include/types/http_htx.h
deleted file mode 100644
index b3af77e..0000000
--- a/include/types/http_htx.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * include/types/http_htx.h
- * This file defines everything related to HTTP manipulation using the internal
- * representation.
- *
- * Copyright (C) 2018 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation, version 2.1
- * exclusively.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef _TYPES_HTTP_HTX_H
-#define _TYPES_HTTP_HTX_H
-
-#include <import/ebistree.h>
-
-#include <haproxy/buf-t.h>
-#include <haproxy/http-t.h>
-#include <haproxy/htx-t.h>
-#include <import/ist.h>
-
-/* Context used to find/remove an HTTP header. */
-struct http_hdr_ctx {
-	struct htx_blk *blk;
-	struct ist     value;
-	uint16_t       lws_before;
-	uint16_t       lws_after;
-};
-
-
-/* Structure used to build the header list of an HTTP reply */
-struct http_reply_hdr {
-	struct ist  name;  /* the header name */
-	struct list value; /* the log-format string value */
-	struct list list;  /* header chained list */
-};
-
-#define HTTP_REPLY_EMPTY    0x00 /* the reply has no payload */
-#define HTTP_REPLY_ERRMSG   0x01 /* the reply is an error message (may be NULL) */
-#define HTTP_REPLY_ERRFILES 0x02 /* the reply references an http-errors section */
-#define HTTP_REPLY_RAW      0x03 /* the reply use a raw payload */
-#define HTTP_REPLY_LOGFMT   0x04 /* the reply use a log-format payload */
-#define HTTP_REPLY_INDIRECT 0x05 /* the reply references another http-reply (may be NULL) */
-
-/* Uses by HAProxy to generate internal responses */
-struct http_reply {
-	unsigned char type;                   /* HTTP_REPLY_* */
-	int status;                           /* The response status code */
-	char *ctype;                          /* The response content-type, may be NULL */
-	struct list hdrs;                     /* A list of http_reply_hdr */
-	union {
-		struct list   fmt;            /* A log-format string (type = HTTP_REPLY_LOGFMT) */
-		struct buffer obj;            /* A raw string (type = HTTP_REPLY_RAW) */
-		struct buffer *errmsg;        /* The error message to use as response (type = HTTP_REPLY_ERRMSG).
-					       * may be NULL, if so rely on the proxy error messages */
-		struct http_reply *reply;     /* The HTTP reply to use as response (type = HTTP_REPLY_INDIRECT) */
-		char *http_errors;            /* The http-errors section to use (type = HTTP_REPLY_ERRFILES).
-					       * Should be resolved during post-check */
-	} body;
-	struct list list;  /* next http_reply in the global list.
-			    * Only used for replies defined in a proxy section */
-};
-
-/* A custom HTTP error message load from a row file and converted in HTX. The
- * node key is the file path.
- */
-struct http_error_msg {
-	struct buffer msg;
-	struct ebpt_node node;
-};
-
-/* http-errors section and parameters. */
-struct http_errors {
-	char *id;                             /* unique identifier */
-	struct {
-		char *file;                   /* file where the section appears */
-		int   line;                   /* line where the section appears */
-	} conf;                               /* config information */
-
-	struct http_reply *replies[HTTP_ERR_SIZE]; /* HTTP replies for known errors */
-	struct list list;                     /* http-errors list */
-};
-
-#endif /* _TYPES_HTTP_HTX_H */