Add Allocation Counter Integration tests

[adam-fowler]

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[codecov]

Codecov Report

Merging #103 (72099dd) into main (1c546e4) will not change coverage.
The diff coverage is n/a.

❗ Current head 72099dd differs from pull request most recent head 567a97e. Consider uploading reports for the commit 567a97e to get more accurate results

@@           Coverage Diff           @@
##             main     #103   +/-   ##
=======================================
  Coverage   82.91%   82.91%           
=======================================
  Files          58       58           
  Lines        2687     2687           
=======================================
  Hits         2228     2228           
  Misses        459      459           

Impacted Files	Coverage Δ
Sources/Hummingbird/HTTP/MediaType.swift	93.97% <ø> (ø)
Sources/HummingbirdXCT/Application+XCT.swift	100.00% <ø> (ø)
Sources/HummingbirdXCT/HBXCTEmbedded.swift	98.00% <ø> (ø)
Sources/HummingbirdXCT/HBXCTLive.swift	87.09% <ø> (ø)

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[adam-fowler]

  - MAX_ALLOCS_ALLOWED_1000_basicRoute=62000
  - MAX_ALLOCS_ALLOWED_1000_bodyInRequestRoute=65000
  - MAX_ALLOCS_ALLOWED_1000_bodyInResponseRoute=61000
  - MAX_ALLOCS_ALLOWED_1000_coreBasicRoute=47000
  - MAX_ALLOCS_ALLOWED_1000_largeBodyInRequest=128000