feat: support more customization for the job pod of the LMES

[yhwang]

Add the following fields to customize the LMES job pod:

• Affinity: for node affinity
• SecurityContext: for both pod and main container

Also, merge the SideCars which is an array of extra containers into the final PodSpec along with the main container.

[tedhtchang]

/LGTM, I tested node affinity in another PR.

[openshift-ci]

@tedhtchang: changing LGTM is restricted to collaborators

In response to this:

/LGTM, I tested node affinity in another PR.

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[github-actions]

PR image build and manifest generation completed successfully!

📦 PR image: quay.io/trustyai/trustyai-service-operator-ci:8a317952dd40f5eaeb378077cdf919e82c80fc7f

📦 LMES driver image: quay.io/trustyai/ta-lmes-driver:8a317952dd40f5eaeb378077cdf919e82c80fc7f

📦 LMES job image: quay.io/trustyai/ta-lmes-job:8a317952dd40f5eaeb378077cdf919e82c80fc7f

🗂️ CI manifests

devFlags:
  manifests:
    - contextDir: config
      sourcePath: ''
      uri: https://api.github.com/repos/trustyai-explainability/trustyai-service-operator-ci/tarball/operator-8a317952dd40f5eaeb378077cdf919e82c80fc7f

[yhwang]

sorry for accidentally deleting my branch. let me rebase the PR and solve the conflict.

[ruivieira]

LGTM, thanks!

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: ruivieira, tedhtchang

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[openshift-ci]

New changes are detected. LGTM label has been removed.

[openshift-ci]

@yhwang: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/trustyai-service-operator-e2e	8a31795	link	true	/test trustyai-service-operator-e2e

Full PR test history. Your PR dashboard.

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