New VM series supported by Azure Batch

Use Azure Batch to run large-scale parallel and high-performance computing (HPC) batch jobs in Azure. The selection of VMs that can be used by Azure Batch has been expanded, allowing newer Azure VM series to be used. The following additional VM series can now be specified when Batch pools are created: * Dav4, Dasv4 * Ddv4, Ddsv4 * Eav4, Easv4 * Edv4, Edsv4 * E64iv3 * Mv2 * NVv4 [Learn more](https://docs.microsoft.com/en-us/azure/batch/batch-pool-vm-sizes). * Batch * Features * [ Batch](https://azure.microsoft.com/en-gb/services/batch/)