[morley-debugger#4] Fix annotations discarded in some instructions
Problem: Currently, some instructions such as IF_NONE are discarding annotations. According to tezos-client, they should be kept.
Solution: Change the interpreter so that annotations are preserved, in some cases restoring the old annotations. In some polymorphic instructions such as ITER and MAP, create a new method responsible for extracting notes for the polymorphic's value element annotations.
This MR is split in two parts. The second part can be found in morley-debugger!3 (merged).
This is a pre-requisite for resolving morley-debugger#4 (closed)
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