Assign to certain device

Sometimes a task may wish to run on a certain GPU, it can fill the nvidia.com/use-gpuuuid field in pod annotation. HAMi scheduler will try to fit in device with that uuid.

For example, a task with the following annotation will be assigned to the device with uuid GPU-123456

metadata:
  annotations:
    nvidia.com/use-gpuuuid: "GPU-123456"

NOTICE: Each GPU UUID is unique in a cluster, so assign a certain UUID means assigning this task to certain node with that GPU