Matt Matejczyk 8140bbc4f5 Deployment Controller - don't copy pods in getPodMapForDeployment ...

As the benchmark shows it speeds up the method~x4 and reduces memory
consumption ~x20.

```
benchmark                              old ns/op     new ns/op     delta
BenchmarkGetPodMapForDeployment-12     276121        72591         -73.71%

benchmark                              old allocs     new allocs     delta
BenchmarkGetPodMapForDeployment-12     241            238            -1.24%

benchmark                              old bytes     new bytes     delta
BenchmarkGetPodMapForDeployment-12     554025        28956         -94.77%
```

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config

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util

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BUILD

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deployment_controller_test.go

Deployment Controller - don't copy pods in getPodMapForDeployment

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deployment_controller.go

Deployment Controller - don't copy pods in getPodMapForDeployment

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OWNERS

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progress_test.go

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progress.go

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recreate_test.go

Deployment Controller - don't copy pods in getPodMapForDeployment

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recreate.go

Deployment Controller - don't copy pods in getPodMapForDeployment

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rollback.go

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rolling_test.go

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rolling.go

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sync_test.go

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sync.go

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