Pod annotations

[roertel]

What this PR does / why we need it:

The podAnnotations setting in values.yaml does not get applied to the OpenLDAP pods. Fixes issue #76

Pre-submission checklist:

• [X] Did you explain what problem does this PR solve? Or what new features have been added?
• [ ] Have you updated the readme?
• [X] Is this PR backward compatible? If it is not backward compatible, please discuss open a ticket first