GitLab

Fix bug in build image for push event.

**Major Revision**
- Fix bug in build image for push event when `github.base_ref` is not set.

**Minor Revision**
- Unify `[` and `[[` usage.

Push Docker images in GitHub Action.

Add ROCm image build in GitHub Actions.

* Bug Fix - Fix race condition issue for multi ranks (#117)

Fix race condition issue when multi ranks rotating the same directory.

* Update pipeline for release branch (#122)

* Bug Fix - Fix bug when convert bool config to store_true argument. (#120)
Co-authored-by: Yifan Xiong <yifan.xiong@microsoft.com>

Update packages and add build cache for CUDA 11.1.1 Dockerfile:

* Remove duplicate cmake and ompi, which are already in base image
* Add hpcx and sharp lib
* Add cache for gitmodules build
* Sort apt-get packages

* add cutlass as submodule.
* add build script for cutlass.
* only support compute capability 7.0(V100) and 8.0(A100)

* add GitHub Action to build and push image
* update Dockerfile to copy from context