[Logs] Add named options support to OtlpLogExporter builder extensions.

[CodeBlanch]

Changes

Applies the named options pattern from #3648 to OtlpLogExporter.

TODOs

• Appropriate CHANGELOG.md updated for non-trivial changes
• Unit Tests
• Changes in public API reviewed

[codecov]

Codecov Report

Merging #3652 (1c8ea31) into main (79d8714) will decrease coverage by 0.23%.
The diff coverage is 80.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3652      +/-   ##
==========================================
- Coverage   87.83%   87.60%   -0.24%     
==========================================
  Files         283      283              
  Lines       10215    10218       +3     
==========================================
- Hits         8972     8951      -21     
- Misses       1243     1267      +24     

Impacted Files	Coverage Δ
...ryProtocol.Logs/OtlpLogExporterHelperExtensions.cs	91.66% <80.00%> (+1.19%)	⬆️
...entation/ExportClient/OtlpGrpcTraceExportClient.cs	35.71% <0.00%> (-42.86%)	⬇️
...xporter.OpenTelemetryProtocol/OtlpTraceExporter.cs	36.36% <0.00%> (-40.91%)	⬇️
...ZPages/Implementation/ZPagesExporterEventSource.cs	56.25% <0.00%> (-6.25%)	⬇️
...metryProtocol/Implementation/ActivityExtensions.cs	91.75% <0.00%> (-3.30%)	⬇️
...ter.ZPages/Implementation/ZPagesActivityTracker.cs	97.14% <0.00%> (-2.86%)	⬇️
...tpListener/Internal/PrometheusCollectionManager.cs	78.04% <0.00%> (-2.44%)	⬇️
...Propagators/OpenTelemetryPropagatorsEventSource.cs	100.00% <0.00%> (+12.50%)	⬆️