TSG-20527 http解析层支持zstd编解码

plugin/protocol/http/include/internal/http_convert.h

@@ -1,6 +1,8 @@
 #pragma once
 #include <tfe_http.h>
 #include <http_half.h>
+#include <zstd.h>
+#include <zdict.h>
 
 struct hf_content_uncompress;
 struct hf_content_compress;

plugin/protocol/http/include/internal/http_half.h

@@ -31,6 +31,7 @@ struct http_header_private
 #define HTTP_ACCEPT_ENCODING_X_GZIP   				BV(5)
 #define HTTP_ACCEPT_ENCODING_X_BZIP2  				BV(6)
 #define HTTP_ACCEPT_ENCODING_BR						BV(7)
+#define HTTP_ACCEPT_ENCODING_ZSTD                   BV(8)
 
 TAILQ_HEAD(http_header_private_list, http_header_private);
 struct http_half_private