CFE-740: Updated cert-manager-operator API to enable customization

[thejasn]

Description

Update operator API to support customization of operand deployments (controller, webhook, cainjector). This reduces end user dependency on using UnsupportedConfigOverrides which is not supported as the name indicates.

[openshift-ci]

Skipping CI for Draft Pull Request.
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[openshift-ci-robot]

@thejasn: This pull request references CFE-740 which is a valid jira issue.

In response to this:

Description

Update operator API to support customization of operand deployments (controller, webhook, cainjector). This reduces end user dependency on using UnsupportedConfigOverrides which is not supported as the name indicates.

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[thejasn]

/test e2e-operator

[TrilokGeer]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: thejasn, TrilokGeer

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[thejasn]

/test e2e-operator

[openshift-ci]

@thejasn: all tests passed!

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[thejasn]

/cc @xingxingxia
This will be followed up with #95, so most of the testing would need to be done as part of that.

[xingxingxia]

Intended to review/research to do a pre-merge test before labeling. Due to no enough time currently, let me first add it:
/label qe-approved
Will test after merge.

[thejasn]

/label docs-approved
/label px-approved