CLOUDP-331496: Split operator roles into smaller templates

[m1kola]

Summary

It becomes increasingly difficult to maintain operator roles in a single template. We recently fixed a series of issues (1, 2, 3) caused by this complexity. We are also looking into unifying installation experience for single cluster & multi cluster setups - having all roles in single template makes it hard to comprehend and re-use in this context.

This PR splits existing roles into multiple template files without changes to the roles. Instead of single operator-roles.yaml there are now the following templates:

• operator-roles-base.yaml - main role for the operator. Roles in this template will likely be split further into smaller roles. We can derive PVC resize Role and Role binding from it, for example.
• operator-roles-clustermongodbroles.yaml - Role giving permissions to clustermongodbroles resources.
• operator-roles-telemetry.yaml - role defining permissions required for telemetry.
• operator-roles-webhook.yaml - role defining permission for the operator to be able to register its own web hook.

Proof of Work

No functional changes. CI must be green.

Checklist

• Have you linked a jira ticket and/or is the ticket in the title?
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[m1kola]

This is used to be operator-roles.yaml. I moved telemetry, webhook and clustermongodbroles RBAC into separate templates. Rest of the file is unchanged.

[mircea-cosbuc]

LGTM!