code: public static FieldMatcher create(boolean ignoreId) {
          FieldMatcher fm = new FieldMatcher();
          fm.ignoreId = ignoreId;
          return fm;
      }
docs: 仅配置是否忽略@Id标注的属性,然后生成实例
  @param ignoreId 是否忽略@Id标注的属性
  @return 字段匹配器实例