Convert exporters to use kubernetes deployments instead of openshift …

[etsauer]

…deploymentconfigs, which are deprecated

• I have read Pelorus Contributing guidelines

Linked Issues

resolves #1147

Description

• Converted exporter helm chart to deploy using kubnetes Deployments instead of depcrecated OpenShift DeploymentConfigs
• Renamed the _deploymentconfig.yaml file to _deployment.yaml
• Updated helper scripts with changed file name

Testing Instructions

Install operator from PR build, and create a test pelorus CR instance. See that exporters deploy successfully, and that they show up on the "Deployments" page in the web console instead of "DeploymentConfigs".

[openshift-ci]

@etsauer: 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/4.13-e2e-openshift	388c1b4	link	true	/test 4.13-e2e-openshift

Full PR test history. Your PR dashboard.

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[etsauer]

/approve

[openshift-ci]

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