Add network stats for Windows containers

[feiskyer]

What this PR does / why we need it:

An alternative way for #67884.

• To get node network stats, it invokes 'Get-NetAdapterStatistics | ConvertTo-Json' to fetch all adapters statistics
• To get pod stats, it adds ListPodSandboxStats in CRI and implementation in dockershim (only windows).

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #64901

Special notes for your reviewer:

Refer #67884 (comment).

Release note:

Add network stats for Windows nodes and pods.

/assign @yujuhong @PatrickLang

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[feiskyer]

Kindly ping @yujuhong. Could you take a look at this PR for the alternative way to get windows network stats?

[yujuhong]

I've talked to a few folks, and they have expressed concerns about adding network stats methods in CRI that would only be used on Windows. As we spoke earlier on slack, can we get a PoC to see how it'd look like to get the information directly in kubelet (without going through CRI) to help us evaluate the best way to approach this? Thanks.

[feiskyer]

@yujuhong Thanks. Opened #70121. PTAL

[feiskyer]

Opened #70121 instead.
/hold

[dims]

per discussion in sig-arch, let's move this out to 1.14

/milestone v1.14

[feiskyer]

Close in favor of #70121.