koordlet: add resctrl qos collector

[Rouzip]

Ⅰ. Describe what this PR does

Add resctrl qos collector.

Ⅱ. Does this pull request fix one issue?

fixes #1832

Ⅲ. Describe how to verify it

After enable resctrl flag in config:

curl http://localhost:9316/metrics|grep resctrl

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Attention: Patch coverage is 57.64192% with 97 lines in your changes missing coverage. Please review.

Project coverage is 67.14%. Comparing base (83267af) to head (1dca501).

Files with missing lines	Patch %	Lines
...icsadvisor/collectors/resctrl/resctrl_collector.go	19.40%	54 Missing ⚠️
pkg/koordlet/resourceexecutor/resctrl.go	69.44%	12 Missing and 10 partials ⚠️
pkg/koordlet/metrics/resctrl.go	0.00%	9 Missing ⚠️
pkg/koordlet/metriccache/metric_types.go	0.00%	7 Missing ⚠️
pkg/koordlet/util/system/resctrl.go	90.56%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2005      +/-   ##
==========================================
- Coverage   67.19%   67.14%   -0.06%     
==========================================
  Files         451      454       +3     
  Lines       43468    43686     +218     
==========================================
+ Hits        29208    29331     +123     
- Misses      11714    11798      +84     
- Partials     2546     2557      +11     

Flag	Coverage Δ
unittests	67.14% <57.64%> (-0.06%)	⬇️

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[Rouzip]

Sorry for the late pr, any comments is welcome.

[koordinator-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[Rouzip]

hello, PTAL 😊 @saintube

[saintube]

@Rouzip Thanks for your great contributions. Since it is a large patch, we need to make some tests before it is merged.

[Rouzip]

@Rouzip Thanks for your great contributions. Since it is a large patch, we need to make some tests before it is merged.

😊 Anything I can do?

[saintube]

@Rouzip Thanks for your great contributions. Since it is a large patch, we need to make some tests before it is merged.

😊 Anything I can do?

We will verify this patch on some test environments later. It would also be appreciated if you could add more UTs to increase the patch coverage to no less than the target of 70%.

[saintube]

/lgtm
PTAL /cc @zwzhang0107 @hormes