2/3 Add Windows Performance Counters Receiver skeleton implementation

[james-bebbington]

Link to tracking Issue: #1088

Description: Adds skeleton for Windows Performance Counters Receiver with very basic initial functionality that can read simple counters that do not include any instance into a Gauge metric - see the added README.md for more details.

Note the scaffolding code makes use of the new receiverhelper & scraperhelper functions added in the Core PRs referenced below.

Depends on: #1175, open-telemetry/opentelemetry-collector#1886, open-telemetry/opentelemetry-collector#1890

[asuresh4]

Please fix lint. I believe a rebase to pull newer version of core should help, it's complaining about ScraperSettings not being declared in receiverhelper.

[james-bebbington]

Please fix lint. I believe a rebase to pull newer version of core should help, it's complaining about ScraperSettings not being declared in receiverhelper.

Will come back to this PR once the Scraper library is finalized in core

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[james-bebbington]

This is ready for review now

[codecov]

Codecov Report

Merging #1211 into master will increase coverage by 17.89%.
The diff coverage is 93.93%.

@@             Coverage Diff             @@
##           master    #1211       +/-   ##
===========================================
+ Coverage   70.87%   88.77%   +17.89%     
===========================================
  Files          29      344      +315     
  Lines        1298    16682    +15384     
===========================================
+ Hits          920    14809    +13889     
- Misses        321     1406     +1085     
- Partials       57      467      +410     

Flag	Coverage Δ
#integration	70.87% <ø> (ø)
#unit	88.04% <93.93%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
receiver/windowsperfcountersreceiver/factory.go	88.23% <88.23%> (ø)
receiver/windowsperfcountersreceiver/config.go	100.00% <100.00%> (ø)
...iver/windowsperfcountersreceiver/factory_others.go	100.00% <100.00%> (ø)
exporter/kinesisexporter/exporter.go	21.73% <0.00%> (ø)
exporter/stackdriverexporter/factory.go	80.00% <0.00%> (ø)
exporter/datadogexporter/metrics_translator.go	65.51% <0.00%> (ø)
...xporter/signalfxcorrelationexporter/correlation.go	75.92% <0.00%> (ø)
receiver/statsdreceiver/reporter.go	88.23% <0.00%> (ø)
...xporter/alibabacloudlogserviceexporter/uploader.go	100.00% <0.00%> (ø)
...eceiver/k8sclusterreceiver/collection/collector.go	22.66% <0.00%> (ø)
... and 325 more

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