Add ability to annotate deployments & pods for autocert & step-issuer

[TheBlackMini]

Description

Resolves Issue #200 by adding to the templates the ability to annotate via 2 new values.

• annotations
• podAnnotations

These default to the current behaviour of not being added if they are not present or an empty map.

[CLAassistant]

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[TheBlackMini]

Well, not sure what I've done wrong here but the CLA says I've signed but this PR won't update??