enhance: Add metautil.Channel to convert string compare to int

[congqixia]

See also #32748

This PR:

• Add metautil.Channel utiltiy which convert virtual name to physical channel name, collectionID and shard idx
• Add channel mapper interface & implementation to convert limited physical channel name into int index
• Apply metautil.Channel filter in querynode segment manager logic

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[congqixia]

/run-cpu-e2e

[codecov]

Codecov Report

Attention: Patch coverage is 82.47423% with 17 lines in your changes are missing coverage. Please review.

Project coverage is 81.74%. Comparing base (600db9d) to head (836d138).
Report is 21 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #32749      +/-   ##
==========================================
- Coverage   81.77%   81.74%   -0.04%     
==========================================
  Files        1001     1002       +1     
  Lines      125359   125437      +78     
==========================================
+ Hits       102508   102534      +26     
- Misses      18966    18996      +30     
- Partials     3885     3907      +22     

Files	Coverage Δ
internal/querynodev2/segments/segment_loader.go	71.84% <100.00%> (ø)
internal/querynodev2/services.go	90.61% <100.00%> (ø)
internal/querynodev2/segments/segment_l0.go	64.86% <50.00%> (-1.34%)	⬇️
internal/querynodev2/segments/manager.go	76.03% <50.00%> (-0.45%)	⬇️
internal/querynodev2/segments/segment.go	66.83% <75.00%> (-0.25%)	⬇️
pkg/util/metautil/channel.go	89.83% <89.83%> (ø)

... and 28 files with indirect coverage changes

[xiaofan-luan]

/lgtm
/approve

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: congqixia, xiaofan-luan

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• internal/querynodev2/OWNERS [congqixia,xiaofan-luan]
• pkg/util/OWNERS [congqixia,xiaofan-luan]

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[congqixia]

@Mergifyio refresh

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refresh

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[weiliu1031]

/lgtm