Additional extension method for otlp log exporter to configure processor options

[vishweshbankwar]

Fixes #4388
Design discussion issue #

Changes

An additional extension to configure export processor options for otlp log exporter.

TODO: updated Readme

Merge requirement checklist

• CONTRIBUTING guidelines followed (nullable enabled, static analysis, etc.)
• Unit tests added/updated
• Appropriate CHANGELOG.md files updated for non-trivial changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

Merging #4733 (9030926) into main (a76564e) will increase coverage by 0.10%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head 9030926 differs from pull request most recent head 5926d1f. Consider uploading reports for the commit 5926d1f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4733      +/-   ##
==========================================
+ Coverage   81.94%   82.04%   +0.10%     
==========================================
  Files         313      313              
  Lines       12731    12741      +10     
==========================================
+ Hits        10432    10453      +21     
+ Misses       2299     2288      -11     

Files Changed	Coverage Δ
...orter.OpenTelemetryProtocol/OtlpExporterOptions.cs	96.36% <ø> (ø)
...try/Logs/ILogger/OpenTelemetryLoggingExtensions.cs	100.00% <ø> (ø)
...lemetryProtocol/OtlpLogExporterHelperExtensions.cs	96.15% <100.00%> (+8.65%)	⬆️

... and 3 files with indirect coverage changes

[CodeBlanch]

LGTM