Azure Batch for PowerShell update

Azure PowerShell includes the following new cmdlets for Azure Batch services:Get-AzureBatchJobGet-AzureBatchPoolGet-AzureBatchTaskGet-AzureBatchWorkItemNew-AzureBatchPoolNew-AzureBatchTaskNew-AzureBatchWorkItemRemove-AzureBatchJobRemove-AzureBatchPoolRemove-AzureBatchTaskRemove-AzureBatchWorkItemFor a brief introduction about the feature, please refer to [Basic Monitoring with Batch PowerShell](https://azure.microsoft.com/blog/2015/03/18/basic-monitoring-with-batch-powershell-2/). * Batch * Features * Management * [ Batch](https://azure.microsoft.com/en-gb/services/batch/)