Unify compression configuration for exporters

[Donnerbart]

The GrpcExporterBuilder enables compression when none is configured.
The OkHttpExporterBuilder has no way to disable compression via none once it's set (which seems wrong for a mutable builder).
The JaegerGrpcSpanExporterBuilder and ZipkinSpanExporterBuilder have no configuration for compression at all.

• Fix handling of compressionMethod none in GrpcExporterBuilder
• Fix handling of compressionMethod none in OkHttpExporterBuilder
• Add compression configuration to JaegerGrpcSpanExporterBuilder
• Add compression configuration to ZipkinSpanExporterBuilder

Note: All exporters except ZipkinSpanExporterBuilder default to compression disabled. In Zipkin the internally used HttpSender.Builder has compressionEnabled = true. This behavior was not changed, so the ZipkinSpanExporterBuilder still enables compression by default.

Resolves #1652 Add GZip encoding support to Zipkin

[codecov]

Codecov Report

Base: 90.79% // Head: 90.92% // Increases project coverage by +0.13% 🎉

Coverage data is based on head (1457bee) compared to base (b5ac8c5).
Patch coverage: 94.44% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4775      +/-   ##
============================================
+ Coverage     90.79%   90.92%   +0.13%     
+ Complexity     4839     4808      -31     
============================================
  Files           554      545       -9     
  Lines         14422    14340      -82     
  Branches       1402     1383      -19     
============================================
- Hits          13094    13039      -55     
+ Misses          910      894      -16     
+ Partials        418      407      -11     

Impacted Files	Coverage Δ
...try/exporter/zipkin/ZipkinSpanExporterBuilder.java	97.72% <90.90%> (-2.28%)	⬇️
...ry/exporter/internal/grpc/GrpcExporterBuilder.java	98.76% <100.00%> (+4.93%)	⬆️
...xporter/internal/okhttp/OkHttpExporterBuilder.java	91.37% <100.00%> (-0.15%)	⬇️
...exporter/jaeger/JaegerGrpcSpanExporterBuilder.java	80.64% <100.00%> (+3.72%)	⬆️
...metry/sdk/autoconfigure/ResourceConfiguration.java	94.87% <0.00%> (-5.13%)	⬇️
...telemetry/sdk/trace/export/BatchSpanProcessor.java	91.03% <0.00%> (-2.07%)	⬇️
.../java/io/opentelemetry/sdk/resources/Resource.java	90.56% <0.00%> (-1.89%)	⬇️
.../aggregator/DoubleExponentialHistogramBuckets.java	88.03% <0.00%> (-0.77%)	⬇️
...in/java/io/opentelemetry/sdk/OpenTelemetrySdk.java	96.42% <0.00%> (ø)
.../io/opentelemetry/sdk/OpenTelemetrySdkBuilder.java	100.00% <0.00%> (ø)
... and 33 more

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[jack-berg]

Looks good, but think we should keep the current behavior for the zipkin exporter and leave compression enabled by default.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[jack-berg]

@jkwatson please take a look when you have a chance

[jkwatson]

Just one small javadoc nit that would be nice to add.