GPU support

[jzhoucliqr]

/kind feature

Describe the solution you'd like As an operator, I would like to add GPU cards to the worker nodes so data science team can utilize it.

Anything else you would like to add:

there are multiple options to add gpu support:

1. PCI passthrough: add dedicated GPU cards from host to VM directly, the card can not be attached to other VMs. Need to find the host which have the GPU cards available, and clone the VM to that specific host, instead of to a resource pool.
2. vGPU: GPU cards can be shared across multiple VMs.

Reference: https://blogs.vmware.com/apps/2018/07/using-gpus-with-virtual-machines-on-vsphere-part-1-overview.html

Environment:

• Cluster-api-provider-vsphere version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):