Support addition of new containers provided as options

[enarha]

If a container or initContainer is provided in options of deployment or statefulset, if a container or initContainer with that name exists, the properties for of that container will be updated with the values provided in options.
With that change, if there is no match, the container or initContainer from options will be added to the deployments and statefulsets.

Changes

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Release Notes

Existing TektonConfig manifests, with additional options for deployments and statefulSets
and including new containers and initContainers, those containers and initContainers will
now be added to the deployments and statefulSets. Previously new containers and 
initContainers were ignored and only existing containers and initContainers were updated
with the configuration added as additional options.

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-operator-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/reconciler/common/transformer_additional_options.go	87.2%	87.5%	0.2

[jkhelil]

/approve

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jkhelil

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[pratap0007]

LGTM

[jkhelil]

/lgtm