Update `Ingress.status.loadBalancer.ingress` when reconciling

[UnstoppableMango]

Should resolve #68

A note about the implementation, I wasn't a fan of mutating the Service inside of FromIngressToExposure but it was the most convenient place for it right now. I could move the mutation into the reconcile method directly, but then we would need a redundant client.Get() call. We could move it somewhere else as well, but that would probably require a bit of refactoring.

[codecov-commenter]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (c685e37) 25.91% compared to head (c7ed1c5) 26.48%. Report is 1 commits behind head on master.

Files	Patch %	Lines
pkg/controller/transform.go	76.92%	2 Missing and 1 partial :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #69 +/- ## ========================================== + Coverage 25.91% 26.48% +0.57% ========================================== Files 9 9 Lines 629 638 +9 ========================================== + Hits 163 169 +6 - Misses 456 458 +2 - Partials 10 11 +1 ```

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[STRRL]

PTAL @UnstoppableMango, I would very much appreciate it if you could address these changes. 🥰🥰

[UnstoppableMango]

You got it! That first one is a little embarrassing 😳 should be able to make the updates this afternoon!

[UnstoppableMango]

Ach I apoligize that first attempt was really half-baked!

I didn't see a great spot to move tests to, is there a place you think they should live?