Add host_config_options to allow configuration of DockerTask for GPU resources

[acmiyaguchi]

Description

This adds a new host_config_options property to DockerTask that gives access to the underlying Docker API for things like gpu requests or increased shared memory. I've also added references to the docker documentation and a few small examples.

Motivation and Context

I need to grant GPU access to a few docker tasks, but the current API interface of the DockerTask doesn't allow any sort of access to the underlying Docker API to be able to make the necessary requests. I've modeled this change after the container_options property which allows broad underlying access to the relevant Docker API calls.

Have you tested this? If so, how?

I have tested this with some code that I'm working with on a Telsa T4: https://github.com/dsgt-birdclef/birdclef-2023/blob/22c8bcb53c297e68298be5fb41933d59e11f55cd/workflows/mixit/docker.py

In particular, I added the following:

    host_config_options = {
        "device_requests": [docker.types.DeviceRequest(count=1, capabilities=[["gpu"]])]
    }

This seems to work as expected with my workflow.