Add blkio for iops limit support in the future

[pacoxu]

Fixes #28

The support of iops in kubernetes and contained can be found and tracked in kubernetes/kubernetes#92287 (comment) and kubernetes/enhancements#1907, containerd/containerd#5490, cri-o/cri-o#4873.

[k8s-triage-robot]

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[pacoxu]

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[neolit123]

added a few comments @pacoxu
i don't object to the change but we need to be clear about the scope.

before the 1.24 release we can create a new release of this library and vendor it in k/k.

[neolit123]

the code changes LGTM, minus this comment about minimum go version:
#29 (comment)

if we can't avoid bumping to 1.16 it's fine.

[pacoxu]

If I drop the go version bumping(with golang format) commit, the verify ci will fail like https://prow.k8s.io/view/gs/kubernetes-jenkins/pr-logs/pull/system-validators/29/pull-system-validators-verify/1497038772368314368.

[pacoxu]

root@pacoall ~]# docker run -it --entrypoint=bash  gcr.io/k8s-staging-test-infra/kubekins-e2e:v20220221-c13e827224-master
root@427ff46eeefa:/workspace# go version
go version go1.17.7 linux/amd64

[neolit123]

Ok, understood. This is fine.
/lgtm
/approve

[k8s-ci-robot]

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