Add emitWorkflowTypeCountMetricsPinot in ESAnalyzer

[bowenxia]

What changed?

• Add emitWorkflowTypeCountMetricsPinot in ESAnalyzer,
• Add pinot aggregation query that has similar result as ES. (Note: since Aggr clause in ES by default only returns the top 10 count, I've set a limit 10 in Pinot to mimic this behavior)
• Because previously the Search function in Pinot Client doesn't return the struct we need for Aggr, I've also implemented another method called SearchAggr for Pinot.GenericClient interface and for PinotClient class.
• Update unit test accordingly.

Why?
To upgrade ESAnalayzer to be Visibility Analyzer

How did you test it?
Unit test

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

Attention: Patch coverage is 97.14286% with 2 lines in your changes missing coverage. Please review.

Project coverage is 72.78%. Comparing base (736d66b) to head (b6005b1).
Report is 1 commits behind head on master.

Additional details and impacted files

Files	Coverage Δ
common/pinot/pinot_client.go	91.42% <100.00%> (+0.80%)	⬆️
service/worker/esanalyzer/analyzer.go	38.46% <100.00%> (+1.20%)	⬆️
...rker/esanalyzer/domainWorkflowTypeCountWorkflow.go	83.03% <96.82%> (+8.52%)	⬆️

... and 5 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 736d66b...b6005b1. Read the comment docs.

[davidporter-id-au]

nit: %q

[bowenxia]

%q here might not work because double quote doesn't work in Pinot