[Minor] Add method to get HTTP message flags

src/libutil/http.c

@@ -2463,6 +2463,12 @@ rspamd_http_message_shmem_ref (struct rspamd_http_message *msg)
 	return NULL;
 }
 
+guint
+rspamd_http_message_get_flags (struct rspamd_http_message *msg)
+{
+	return msg->flags;
+}
+
 void
 rspamd_http_message_shmem_unref (struct rspamd_storage_shmem *p)
 {

src/libutil/http.h

@@ -448,6 +448,13 @@ struct rspamd_storage_shmem* rspamd_http_message_shmem_ref (struct rspamd_http_m
  */
 void rspamd_http_message_shmem_unref (struct rspamd_storage_shmem *p);
 
+/**
+ * Returns message's flags
+ * @param msg
+ * @return
+ */
+guint rspamd_http_message_get_flags (struct rspamd_http_message *msg);
+
 /**
  * Parse HTTP date header and return it as time_t
  * @param header HTTP date header