[Experimental] [WIP] add QUIC support and use netpoll for more efficient network handling

[kpango]

Signed-off-by: kpango kpango@vdaas.org

Description:

Vald has been working on minimizing the overhead of the network by enhancing the libraries around each network, including gRPC.
Recently, the final specification of QUIC has been fixed, and Vald would like to verify the approach of gRPC over QUIC, since it will be in practical use soon.
This PR contains the code to verify gRPC over QUIC using quic-go from netpoll and other Network I/O blocking solutions.

Related Issue:

How Has This Been Tested?:

Environment:

• Go Version: 1.16.6
• Docker Version: 19.03.8
• Kubernetes Version: 1.18.2
• NGT Version: 1.12.3

Types of changes:

• Bug fix [type/bug]
• New feature [type/feature]
• Add tests [type/test]
• Security related changes [type/security]
• Add documents [type/documentation]
• Refactoring [type/refactoring]
• Update dependencies [type/dependency]
• Update benchmarks and performances [type/bench]
• Update CI [type/ci]

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully ran tests with your changes locally?

Checklist:

• I have read the CONTRIBUTING document.
• I have checked open Pull Requests for the similar feature or fixes?
• I have added tests and benchmarks to cover my changes.
• I have ensured all new and existing tests passed.
• I have commented my code, particularly in hard-to-understand areas
• I have updated the documentation accordingly.

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[vdaas-ci]

[WARNING:INTCFG] Changes in interal/config may require you to change Helm charts. Please check.

[codecov]

Codecov Report

Base: 50.23% // Head: 47.63% // Decreases project coverage by -2.61% ⚠️

Coverage data is based on head (6faac03) compared to base (97eed29).
Patch coverage: 0.51% of modified lines in pull request are covered.

❗ Current head 6faac03 differs from pull request most recent head 865206c. Consider uploading reports for the commit 865206c to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1771      +/-   ##
==========================================
- Coverage   50.23%   47.63%   -2.61%     
==========================================
  Files         231      212      -19     
  Lines       13464    10729    -2735     
==========================================
- Hits         6764     5111    -1653     
+ Misses       6499     5441    -1058     
+ Partials      201      177      -24     

Impacted Files	Coverage Δ
hack/benchmark/assets/x1b/loader.go	0.00% <ø> (ø)
hack/benchmark/internal/assets/dataset.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/insert.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/operation.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/option.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/remove.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/search.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/util.go	0.00% <ø> (ø)
hack/gorules/rules.go	0.00% <ø> (ø)
hack/license/gen/main.go	0.00% <0.00%> (ø)
... and 73 more

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[github-actions]

[LanguageTool] _{reported by reviewdog 🐶}
Possible typo: you repeated a word (ENGLISH_WORD_REPEAT_RULE)
Suggestions: Filter
Rule: https://community.languagetool.org/rule/show/ENGLISH_WORD_REPEAT_RULE?lang=en-US
Category: MISC

[github-actions]

[LanguageTool] _{reported by reviewdog 🐶}
Possible typo: you repeated a word (ENGLISH_WORD_REPEAT_RULE)
Suggestions: Insert
Rule: https://community.languagetool.org/rule/show/ENGLISH_WORD_REPEAT_RULE?lang=en-US
Category: MISC