Handlers from godeltaprof

[olegbespalov]

What?

Adds new delta pprof handlers

Why?

This could improve the performance, but we need to test it first

Checklist

• I have performed a self-review of my code.
• I have added tests for my changes.
• I have run linter locally (make ci-like-lint) and all checks pass.
• I have run tests locally (make tests) and all tests pass.
• I have commented on my code, particularly in hard-to-understand areas.

Related PR(s)/Issue(s)

[codecov-commenter]

Codecov Report

All modified lines are covered by tests ✅

❗ No coverage uploaded for pull request base (feat/pprof@ec85262). Click here to learn what that means.

❗ Current head 8ed143c differs from pull request most recent head a3f345f. Consider uploading reports for the commit a3f345f to get more accurate results

Additional details and impacted files

@@              Coverage Diff              @@
##             feat/pprof    #3372   +/-   ##
=============================================
  Coverage              ?   72.91%           
=============================================
  Files                 ?      259           
  Lines                 ?    20014           
  Branches              ?        0           
=============================================
  Hits                  ?    14593           
  Misses                ?     4489           
  Partials              ?      932           

Flag	Coverage Δ
ubuntu	72.91% <0.00%> (?)

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