Feature/provider config

[vincentfree]

Add a provider library that simplifies the process of creating the providers for otel instrumentation libraries.

The library provides a New function to create a new provider instance. With this instance you can easily inject a provider.

The Idea is to reduce boilerplate code in projects and make it easier on developers.

Example of the usage of the lib:

provider := providerconfig.New(
	providerconfig.WithApplicationName("example-app"),
	providerconfig.WithApplicationVersion("0.1.0"),
	providerconfig.WithExecutionType(providerconfig.Async),
	providerconfig.WithSignalProcessor(providerconfignoop.NewNoopProcessor()),
)

// traces
otel.SetTracerProvider(provider.TraceProvider())

// metrics
otel.SetMeterProvider(provider.MetricProvider())

// logs
global.SetLoggerProvider(provider.LogProvider())

Instead of the Noop processor, there are two other signal processors available, one for http and the other for grpc.

These are available through:

• github. com/ vincentfree/ opentelemetry/ providerconfiggrpc
• github. com/ vincentfree/ opentelemetry/ providerconfighttp

These can be used as follows:

signalProcessor := providerconfiggrpc.New(
		providerconfiggrpc.WithCollectorEndpoint("0.0.0.0", 8888),
)
provider := providerconfig.New(providerconfig.WithApplicationName("example-app"),
	providerconfig.WithApplicationVersion("0.1.0"),
	providerconfig.WithSignalProcessor(signalProcessor),
)