1.删除缓存测试无效代码

2.修改header链表结构为TQ
3,重构h2_half_ops_field_read，h2_half_ops_field_write等接口

plugin/business/pangu-http/src/pattern_replace.cpp

@@ -333,7 +333,7 @@ size_t insert_string(char * in, size_t in_sz, const char *insert_on, const char
 	offset+=concat_len;
 	memcpy(target+offset, insert_from, in_sz-(insert_from-in));
 	offset+=in_sz-(insert_from-in);
-	assert(target_size==offset+1);
+	assert(target_size==offset);
 
 	free(concat_style);
 	concat_style = NULL;