Separate and refactor custom resources logic

Merge pull request kubernetes#1384 from losipiuk/lo/1.12.1

Cluster Autoscaler 1.12.1

Merge pull request kubernetes#1324 from losipiuk/lo/ca-1.3.4

Bump CA version to 1.3.4

Merge pull request kubernetes#1268 from losipiuk/lo/ca-1.3.3

Cluster Autoscaler version 1.3.3

Cluster Autoscaler 1.12.0

Merge pull request kubernetes#1224 from losipiuk/lo/ca-112

Cluster Autoscaler v1.12-beta.1

Merge pull request kubernetes#1217 from losipiuk/lo/ca-1.2.3

Cluster Autoscaler 1.2.3

Merge pull request kubernetes#1209 from aleksandra-malinowska/cluster…

…-autoscaler-1.3.2

Cluster Autoscaler 1.3.2

Merge pull request kubernetes#1178 from aleksandra-malinowska/cluster…

…-autoscaler-1.2.3-beta.2

Cluster Autoscaler 1.2.3-beta.2

Merge pull request kubernetes#1176 from aleksandra-malinowska/cluster…

…-autoscaler-1.3.2-beta.2

Cluster Autoscaler 1.3.2-beta.2