Add common annotations for resources created by this chart

[dmbuck32]

What's changing

Adds support for common annotations across all resources deployed by this chart.

Example use case

Useful for adding annotations that are required by kyverno policies on my K8s cluster.

Sample Values.yaml:

commonAnnotations:
  source-code: "<GitHub URL>"
  team: "Internal Team"

Example output:

# Source: harbor/templates/core/core-dpl.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: release-name-harbor-core
  namespace: "release-namespace"
  annotations:
    source-code: "<GitHub URL>"
    team: "Internal Team"
  labels:
    ...

Fixes

Fixes adding annotations to components as part of: #2221

[thomasvvugt]

Would love to see this PR approved as well