UI: Support viewing logs for containers created by resource template

# Summary

AFAIK, currently argo can only log container defined in Workflow step, not the container it creates through resource template. It will be useful if users can specify the container they want to log.

# Use Cases

For example, if users want to use argo and kubeflow training operator for ML training, they can use the follow template
```yaml
- metadata:
labels:
user: xxx
name: step4
resource:
action: create
failureCondition: failed in (status.replicaStatuses.Master, status.replicaStatuses.Worker)
manifest: |
apiVersion: kubeflow.org/v1
kind: PyTorchJob
metadata:
generateName: step4-pytorchjob-
labels:
user: xxx
namespace: xxx
spec:

```
However, currently argo can only log the container of that "argo container", which looks like below:
```
time="2021-10-21T07:01:06.195Z" level=info msg="0/1 success conditions matched"
time="2021-10-21T07:01:06.195Z" level=info msg="Waiting for resource pytorchjob.kubeflow.org/pytorchjob-l8kc9 in namespace argo resulted in retryable error: Neither success condition nor the failure condition has been matched. Retrying..."
time="2021-10-21T07:01:11.199Z" level=info msg="Get pytorchjobs 200"
time="2021-10-21T07:01:11.199Z" level=info msg="failure condition '{failed in [status.replicaStatuses.Master status.replicaStatuses.Worker]}' evaluated false"
time="2021-10-21T07:01:11.199Z" level=info msg="success condition '{status.replicaStatuses.Master.succeeded exists []}' evaluated false"
time="2021-10-21T07:01:11.199Z" level=info msg="0/1 success
```
Can we support this feature? Thanks.

---

**Message from the maintainers**:

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No files, tests, or entry points are named in the issue. Start by tracing how the UI currently retrieves logs for workflow-step containers and how resource-template-created Kubernetes objects are represented; done means users can select a container from the created resource and view its logs, with coverage for the Kubeflow training-job example.

Written by the indexing model from the issue text.