[Issue-1084] Addjust scheduler extender algorithm

[Andrzej-Zukowski]

Purpose

Resolves #1084

Describe your changes

PR checklist

• Add link to the issue
• Choose Project
• Choose PR label
• New unit tests added
• Modified code has meaningful comments
• All TODOs are linked with the issues
• All comments are resolved

Testing

Provide test details

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.

Project coverage is 72.78%. Comparing base (f45d675) to head (c9e77c2).
Report is 51 commits behind head on master.

Files	Patch %	Lines
pkg/scheduler/extender/extender.go	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1087      +/-   ##
==========================================
+ Coverage   72.76%   72.78%   +0.02%     
==========================================
  Files          63       63              
  Lines        8949     8956       +7     
==========================================
+ Hits         6512     6519       +7     
- Misses       2147     2149       +2     
+ Partials      290      288       -2     

Flag	Coverage Δ
unittests	72.78% <0.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.