Add support for configuring cluster autoscaler and machine autoscalers #159

Job	Run time
editorconfig	5s
golden (defaults)	18s
golden (gcp)	18s
linting (lint_jsonnet)	5s
golden (maxpods)	21s
golden (pidslimit)	22s
linting (lint_yaml)	8s
test (defaults)	20s
golden (machineconfig)	20s
linting (lint_adoc)	8s
test (gcp)	18s
golden (remove-machineconfigpool)	22s
test (maxpods)	19s
golden (autoscaling)	21s
test (pidslimit)	19s
test (machineconfig)	20s
test (remove-machineconfigpool)	21s
test (autoscaling)	22s
	5m 7s

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