* migrate partial_fc

* add test and fix DistributedPariticalFCSample release bug

* fix typos in functional_api.yaml

* initialization

* refine testcase

* skip cpu-only test

* reformat
Co-authored-by: Nbbuf <1182563586@qq.com>
Co-authored-by: NXiaoyu Zhang <35585791+BBuf@users.noreply.github.com>
Co-authored-by: NYinggang Wang <wyg19970408@gmail.com>
Co-authored-by: Noneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>