Add an operator to configure toleration of the GKE GPU node taints (#3671)
Add an operator to configure toleration of the GKE GPU node taints (#3671)

* Add an operator to configure toleration of the GKE GPU taints

https://cloud.google.com/kubernetes-engine/docs/how-to/gpus#gpu_pool

* Make sure of the google coding style with yapf

* Change the function name to add_gpu_toleration
kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines