Allow resource names to be configurable

[chaychoong]

I am currently attempting to perform autoscaling using Karpenter, but it does not support custom resources.

One solution would be to use the resource name nvidia.com/gpu, which would be picked up by Karpenter.

However, the resource names are fixed to be directx.microsoft.com/compute and directx.microsoft.com/display. If they can be configured via an env var, that would be sweet!