Handle pointer items in ObjectList with ChildReconciler

[scothis]

Canonically, Items in an ObjectList are a slice of structs. Some types, like Istio, use a slice of pointers intead. We now detect and handle both.

Resolves #479

[vmwclabot]

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (e22ffba) 60.67% compared to head (23afd45) 61.02%. Report is 16 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #480 +/- ## ========================================== + Coverage 60.67% 61.02% +0.34% ========================================== Files 26 27 +1 Lines 2543 2581 +38 ========================================== + Hits 1543 1575 +32 - Misses 911 917 +6 Partials 89 89 ```

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[vmwclabot]

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[scothis]

@neowulf can you give this branch a try?

[mamachanko]

@neowulf can you give this branch a try?

Because personally I can never recall the correct incantation, this may help:

go mod edit -replace github.com/vmware-labs/reconciler-runtime=github.com/scothis/reconciler-runtime@object-list-pointer
go mod tidy

[neowulf]

Thank you for the quick response! Yes, this patch works!

[vmwclabot]

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