Add padding support to TrackLocalStaticSample

[alexpokotilo]

To add padding-only samples call GeneratePadding

Description

v4 version of #2745

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 77.83%. Comparing base (b2af663) to head (059a152).

Files	Patch %	Lines
track_local_static.go	66.66%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2746      +/-   ##
==========================================
- Coverage   77.85%   77.83%   -0.02%     
==========================================
  Files          87       87              
  Lines        8190     8202      +12     
==========================================
+ Hits         6376     6384       +8     
- Misses       1343     1345       +2     
- Partials      471      473       +2     

Flag	Coverage Δ
go	79.34% <66.66%> (-0.03%)	⬇️
wasm	64.41% <ø> (ø)

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[Sean-Der]

Fantastic LGTM @alexpokotilo

Can you add a E2E test that just shows sending padding (and getting it as expected) then it is good to merge :)

I will make sure to do /v3 also

[alexpokotilo]

Fantastic LGTM @alexpokotilo

Can you add a E2E test that just shows sending padding (and getting it as expected) then it is good to merge :)

I will make sur\e to do /v3 also

You are right ! Added test. Please propagate this fix into v3

[Sean-Der]

Anything you need on /v3 I will make sure to propagate @alexpokotilo !