[sdk] Organize related files into sub-folders

[CodeBlanch]

Changes

• Organize the SDK project a bit by moving related things into sub-folders:

  • Logs\Processor
  • Trace\Processor
  • Trace\Sampler
  • Metrics\MetricPoint
  • Metrics\Reader
  • Metrics\View

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.12%. Comparing base (6250307) to head (13f9449).
Report is 267 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5706      +/-   ##
==========================================
+ Coverage   83.38%   86.12%   +2.73%     
==========================================
  Files         297      254      -43     
  Lines       12531    11054    -1477     
==========================================
- Hits        10449     9520     -929     
+ Misses       2082     1534     -548     

Flag	Coverage Δ
unittests	?
unittests-Project-Experimental	86.10% <ø> (?)
unittests-Project-Stable	86.12% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
.../Processor/BatchExportLogRecordProcessorOptions.cs	100.00% <ø> (ø)
...ry/Logs/Processor/BatchLogRecordExportProcessor.cs	88.88% <ø> (ø)
.../Logs/Processor/LogRecordExportProcessorOptions.cs	81.81% <ø> (ø)
...y/Logs/Processor/SimpleLogRecordExportProcessor.cs	100.00% <ø> (ø)
...ics/MetricPoint/Base2ExponentialBucketHistogram.cs	100.00% <ø> (ø)
...Metrics/MetricPoint/ExponentialHistogramBuckets.cs	100.00% <ø> (ø)
...ry/Metrics/MetricPoint/ExponentialHistogramData.cs	100.00% <ø> (ø)
...enTelemetry/Metrics/MetricPoint/HistogramBucket.cs	100.00% <ø> (ø)
...nTelemetry/Metrics/MetricPoint/HistogramBuckets.cs	100.00% <ø> (ø)
...c/OpenTelemetry/Metrics/MetricPoint/MetricPoint.cs	94.24% <ø> (ø)
... and 26 more

... and 155 files with indirect coverage changes