feat(client): add LogStreamAppender

[ijsong]

What this PR does

This PR adds LogStreamAppender to the client, and it is a client to append asynchronously only a particular log stream.

Which issue(s) this PR resolves

Resolves #433

[ijsong]

Current dependencies on/for this PR:

• main
  • PR ci(lint): fix depguard configuration #463
    • PR feat(storagenode): change append rpc from unary to stream #449
      • PR fix(storagenode): support partial success/failure for append #450
        • PR feat(storagenode): add configurations for initial window size #451
          • PR feat(storagenode): add pipelined Append RPC handler #457
            • PR feat(client): add LogStreamAppender #459 👈
              • PR test(benchmark): support log stream appender #462

This comment was auto-generated by Graphite.

[codecov-commenter]

Codecov Report

Patch coverage: 26.04% and project coverage change: -0.52 ⚠️

Comparison is base (80abf51) 63.15% compared to head (73006e6) 62.63%.

❗ Current head 73006e6 differs from pull request most recent head 62067e9. Consider uploading reports for the commit 62067e9 to get more accurate results

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Additional details and impacted files

@@                     Coverage Diff                      @@
##           pipelined_append_handler     #459      +/-   ##
============================================================
- Coverage                     63.15%   62.63%   -0.52%     
============================================================
  Files                           132      133       +1     
  Lines                         18145    18336     +191     
============================================================
+ Hits                          11459    11485      +26     
- Misses                         6120     6277     +157     
- Partials                        566      574       +8     

Impacted Files	Coverage Δ
internal/storagenode/client/log_client.go	48.80% <0.00%> (-0.80%)	⬇️
pkg/varlog/config.go	50.79% <0.00%> (-40.64%)	⬇️
pkg/varlog/log.go	0.00% <0.00%> (ø)
pkg/varlog/log_stream_appender.go	0.00% <0.00%> (ø)
pkg/varlogtest/log.go	75.54% <92.59%> (+2.88%)	⬆️

... and 7 files with indirect coverage changes

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[ijsong]

@ijsong started a stack merge that includes this pull request via Graphite.

[ijsong]

Graphite rebased this pull request as part of a merge.

[ijsong]

@ijsong merged this pull request with Graphite.