[#386] Preserve annotations in `Interpret`.

Description

Problem: During contract interpretation, Notes and VarAnns are discarded, without making it to the stack.

Solution: Create runInstrAnnotatedImpl to preserve notes in a newly added AnnotatedStkEl datatype, which holds Value as well as notes information.

Related issue(s)

This is a precondition to solve #386 (closed).

✅ Checklist for your Merge Request

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  • If I added new functionality, I added tests covering it.
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  • I updated changelog files of all affected packages released to Hackage if my changes are externally visible.

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