[CECO-1153] APM e2e test

[tbavelier]

What does this PR do?

Introduces an APM e2e test in two parts:

• Ensuring traces are received locally (at the Agent level) for all 3 services, using all 3 methods (TCP on hostPort, Agent service and UDP using socket)
• Ensuring traces are sent to the API

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

Write there any instructions and details you may have to test your PR.

Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.94%. Comparing base (8ad0c66) to head (c3c50d1).

Additional details and impacted files

@@                   Coverage Diff                    @@
##           fanny/refactor-kind-e2e    #1549   +/-   ##
========================================================
  Coverage                    48.94%   48.94%           
========================================================
  Files                          227      227           
  Lines                        20636    20636           
========================================================
  Hits                         10101    10101           
  Misses                       10010    10010           
  Partials                       525      525           

Flag	Coverage Δ
unittests	48.94% <ø> (ø)

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[tbavelier]

This is due to my IDE setting, is no-op and this kind_test.go will be removed eventually post refactor

[fanny-jiang]

💯