[OneCollector] Add RegisterPayloadTransmittedCallback API

[CodeBlanch]

Changes

• Adds an API which can be used to toggle on/off invocation of a callback any time a payload is transmitted by OneCollector exporter.

• Refactors options/builders/extensions a bit to move batch options off of the exporter options class.

TODOs

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

[codecov]

Codecov Report

Merging #1058 (00651a4) into main (25632df) will increase coverage by 0.32%.
The diff coverage is 81.81%.

❗ Current head 00651a4 differs from pull request most recent head 0d56085. Consider uploading reports for the commit 0d56085 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1058      +/-   ##
==========================================
+ Coverage   69.69%   70.02%   +0.32%     
==========================================
  Files         202      203       +1     
  Lines        7699     7766      +67     
==========================================
+ Hits         5366     5438      +72     
+ Misses       2333     2328       -5     

Impacted Files	Coverage Δ
...lector/Internal/OneCollectorExporterEventSource.cs	26.08% <0.00%> (-3.19%)	⬇️
...neCollector/Logs/OneCollectorLogExporterOptions.cs	75.00% <ø> (-15.91%)	⬇️
...porter.OneCollector/OneCollectorExporterOptions.cs	94.73% <0.00%> (-5.27%)	⬇️
...eCollector/OneCollectorExporterTransportOptions.cs	71.42% <ø> (-0.80%)	⬇️
...ctor/Logs/OneCollectorLogExportProcessorBuilder.cs	70.17% <70.17%> (ø)
...ector/Internal/Transports/HttpJsonPostTransport.cs	82.17% <90.00%> (+3.69%)	⬆️
...ctorExporterPayloadTransmittedCallbackArguments.cs	93.75% <93.75%> (ø)
....Exporter.OneCollector/Internal/CallbackManager.cs	95.83% <95.83%> (ø)
...ternal/Serialization/CommonSchemaJsonSerializer.cs	100.00% <100.00%> (ø)
...tor/Internal/Sinks/WriteDirectlyToTransportSink.cs	91.13% <100.00%> (+0.34%)	⬆️
... and 8 more