feat: Esbuild plugin diag channel

[drewcorlin1]

Which problem is this PR solving?

Providing a way for users to auto instrument their bundled code. Diag channels based alternative to open-telemetry/opentelemetry-js-contrib#1856.

This should supersede (and is heavily inspired by) https://github.com/open-telemetry/opentelemetry-js/pull/4818/files

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Short description of the changes

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Tested with open-telemetry/opentelemetry-js-contrib#2640.

Steps to test

1. From this repo npm run compile
2. From this repo create a script experimental/packages/opentelemetry-instrumentation/scripts/dev-install.sh

#!/usr/bin/env bash

if [[ ! -e package.json ]]; then
  echo 'Must be run from the directory containing package.json'
  exit 1
fi

set -e

src_root="$(dirname $0)/.."

rsync --recursive --exclude '**/node_modules/' "$src_root/build/" "node_modules/@opentelemetry/instrumentation/build"

3. From the root of opentelemetry-js-contrib run that script (eg ../opentelemetry-js/experimental/packages/opentelemetry-instrumentation/scripts/dev-install.sh)
4. From opentelemetry-js-contrib run npm run compile
5. From opentelemetry-js-contrib/packages/esbuild-plugin-node/ run npm run test

Checklist:

• Followed the style guidelines of this project
• Unit tests have been added
• Documentation has been updated

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.56%. Comparing base (6864c2f) to head (b8c98f1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5334   +/-   ##
=======================================
  Coverage   94.56%   94.56%           
=======================================
  Files         322      322           
  Lines        8132     8132           
  Branches     1715     1715           
=======================================
  Hits         7690     7690           
  Misses        442      442           

[drewcorlin1]

@trentm this differed from your original implementation. Idea here is to handle instrumentations that patch just the top level module (eg fastify) and instrumentations that patch specific files (eg graphQL)