Create a provider to use Azure Batch (#133)

* Started work on provider

* WIP Adding batch provider

* Working basic call into pool client. Need to parameterize the baseurl

* Fixed job creation by manipulating the content-type

* WIP Kicking off containers. Dirty

* [wip] More meat around scheduling simple containers.

* Working on basic task wrapper to co-schedule pods

* WIP on task wrapper

* WIP

* Working pod minimal wrapper for batch

* Integrate pod template code into provider

* Cleaning up

* Move to docker without gpu

* WIP batch integration

* partially working

* Working logs

* Tidy code

* WIP: Testing and readme

* Added readme and terraform deployment for GPU Azure Batch pool.

* Update to enable low priority nodes for gpu

* Fix log formatting bug. Return node logs when container not yet started

* Moved to golang v1.10

* Fix cri test

* Fix up minor docs Issue. Add provider to readme. Add var for vk image.

README.md

@@ -20,6 +20,7 @@ The best description is "Kubernetes API on top, programmable back."
 * [Usage](#usage)
 * [Providers](#providers)
     + [Azure Container Instances Provider](#azure-container-instances-provider)
+	+ [Azure Batch GPU Provider](./providers/azurebatch/README.md)
     + [AWS Fargate Provider](#aws-fargate-provider)
     + [Hyper.sh Provider](#hypersh-provider)
     + [Adding a New Provider via the Provider Interface](#adding-a-new-provider-via-the-provider-interface)