* rewrite config module
Signed-off-by: Nwxyu <xy.wang@zilliz.com>

* clang-format
Signed-off-by: Nwxyu <xy.wang@zilliz.com>

* remove empty test
Signed-off-by: Nwxyu <xy.wang@zilliz.com>

* fix include
Signed-off-by: Nwxyu <xy.wang@zilliz.com>

* fix compile
Signed-off-by: Nwxyu <xy.wang@zilliz.com>

* fix clang-format
Signed-off-by: Nwxyu <xy.wang@zilliz.com>