Proposal: Add helper to initialize log datastores along with operator

[smanpathak]

Description

Presently, the logging operator uses cluster level Output CRs. Log sinks at cluster level are configured by admins once and left alone. To improve usability, we can initialize log outputs user wants along with the operator initialization

Use cases

• Enable Kubernetes cluster admins provide log output CR along with operator installation.

Implementation Details

When installing the fluentd-operator, the output CRDs may not be present. To handle this case, the helper runs as a Kubernetes job which checks for their existence and fails if absent. Once the CRDs are created, it creates the needed output objects and quits.

[smanpathak]

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