Ensure ./run-example.sh adds bytecode instr.

[pjanotti]

Why

Bytecode instrumentation is not available when running ./run-example.sh

What

• Make 3 env vars from dev/envvars.sh configurable and prevent dotnet.exe and dotnet from being excluded when running ./run-example.sh
• Fixed vendorPluginTargetFramework on ./run-example.sh
• Enabled logs on the collector config script, avoids errors being logged from processes exporting logs.

Tests

Ran ./run-example.sh manually.

Checklist

- [ ] CHANGELOG.md is updated.
- [ ] Documentation is updated.
- [ ] New features are covered by tests.

[pjanotti]

Ok, adding the logs receiver to the collector got rid of this error message:

[2022-10-09T20:14:29.7790596Z] [Error] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Exporter failed send data to collector to http://localhost:4318/v1/logs endpoint. Data will not be sent. Exception: System.Net.Http.HttpRequestException: Response status code does not indicate success: 404 (Not Found).
   at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
   at OpenTelemetry.Exporter.OpenTelemetryProtocol.Implementation.ExportClient.BaseOtlpHttpExportClient`1.SendExportRequest(TRequest request, CancellationToken cancellationToken) 

However, there are still the following warning messages:

[2022-10-09T21:18:16.9526464Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 
[2022-10-09T21:18:16.9589612Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 
[2022-10-09T21:18:16.9596958Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 
[2022-10-09T21:18:16.9605245Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 
[2022-10-09T21:18:16.9612851Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 
[2022-10-09T21:18:16.9620372Z] [Warning] EventSource=OpenTelemetry-Exporter-OpenTelemetryProtocol, Message=Could not translate LogRecord due to Exception: 'IFeatureCollection has been disposed.
Object name: 'Collection'.'. Log will not be exported. 

Tracking the warning messages via #1384

[Kielek]

Jaeger supports OTLP by default. We should be able to drop jaeger protocol here.

Probably separate PR. Ref: https://www.jaegertracing.io/docs/1.38/apis/#opentelemetry-protocol-stable

[pellared]

I think we should change the examples to just contain a client and server app, Dockerfiles, and a docker-compose to run it.

Previously we used it for testing purposes. Right now I think we should make it more .NET devs (users) friendly.