Tracing with opentelemetry

[Assem-Uber]

Summary

Add opentelemetry sdk traces to support tracing for common node server operations (Pages rendering and http endpoints)

Changes

• Create register otel utility to create the node sdk with default configurations
• Instrument gRPC/HTTP/Fetch by default
• Propagate trace and baggage using JaegerPropagator
• add '@grpc/grpc-js', 'require-in-the-middle', '@opentelemetry/exporter-jaeger' as external services to prevent nextjs from bundling them.
• otel traces are exported using gRPC exporter

Testing

Tested locally by:

• Running Jaeger container locally
• Setting env varaiable OTEL_SDK_DISABLED=false
• Setting OTEL_EXPORTER_OTLP_TRACES_ENDPOINT Jaeger collector http endpoint. By default it is http://localhost:4317