Add podAnnotations to Helm templates for injecting user-specified pod.

[oniku-2929]

What this PR does / Why we need it:
#1588

Which issue(s) this PR fixes:

Closes #1588

Special notes for your reviewer:
values.yaml example.

swaggerui:
  podAnnotations:
    test.sh/component: swaggerui
query:
  podAnnotations:
    test.sh/component: query
frontend:
  podAnnotations:
    test.sh/component: frontend
backend:
  podAnnotations:
    test.sh/component: backend
synchronizer:
  podAnnotations:
    test.sh/component: synchronizer

open-match-customize:
  enabled: true
  evaluator:
    enabled: true
    podAnnotations:
      test.sh/component: evaluator
  function:
    enabled: true
    podAnnotations:
      test.sh/component: function

open-match-scale:
  enabled: true
  scaleFrontend:
    podAnnotations:
      test.sh/component: scaleFrontend
  scaleBackend:
    podAnnotations:
      test.sh/component: scaleBackend