Add ResourceRequirments to WorkflowController

[gmfrasca]

• Introduces ResourceRequirements for WorkflowController in DSPA CRD
• Adds dynamic request and limit defaults for WC deployment

The issue resolved by this Pull Request:

Resolves RHOAIENG-8242

Description of your changes:

Testing instructions

• Deploy DSPO
• Create DSPA, preferably with custom values set for spec.workflowController.resources.requests.memory, spec.workflowController.resources.limits.memory, spec.workflowController.resources.requests.cpu, and spec.workflowController.resources.limits.cpu
• Go to OpenShift Console, go to DSPA project, and click Pods
• Find pod with name starting with ds-pipeline-workflow-controller- and click it
• Go to Metrics tab, ensure the Memory Usage and CPU Usage graphs show correct limits
• Run several simultaneous pipelines, ensure the limits are not encroached upon

Checklist

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[dsp-developers]

A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-667
An OCP cluster where you are logged in as cluster admin is required.

To use this image run the following:

cd $(mktemp -d)
git clone git@github.com:opendatahub-io/data-science-pipelines-operator.git
cd data-science-pipelines-operator/
git fetch origin pull/667/head
git checkout -b pullrequest 00ae75c614be8531149f3fa438f5707d7e0a5aa5
oc new-project opendatahub
make deploy IMG="quay.io/opendatahub/data-science-pipelines-operator:pr-667"

More instructions here on how to deploy and test a Data Science Pipelines Application.

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-667

[HumairAK]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HumairAK

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