add DisableDefaultQuota featuregate

[shaloulcy]

Ⅰ. Describe what this PR does

add a feature gate to disable default quota

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Patch coverage: 45.71% and project coverage change: -0.01% ⚠️

Comparison is base (fbe725f) 65.95% compared to head (670989e) 65.94%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1665      +/-   ##
==========================================
- Coverage   65.95%   65.94%   -0.01%     
==========================================
  Files         380      380              
  Lines       40867    40930      +63     
==========================================
+ Hits        26952    26990      +38     
- Misses      11942    11958      +16     
- Partials     1973     1982       +9     

Flag	Coverage Δ
unittests	65.94% <45.71%> (-0.01%)	⬇️

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

Files Changed	Coverage Δ
pkg/features/features.go	60.00% <ø> (ø)
pkg/features/scheduler_features.go	100.00% <ø> (ø)
pkg/scheduler/plugins/elasticquota/plugin.go	55.82% <0.00%> (-4.71%)	⬇️
pkg/webhook/elasticquota/pod_check.go	54.66% <25.00%> (-2.28%)	⬇️
...kg/scheduler/plugins/elasticquota/plugin_helper.go	72.19% <52.17%> (-2.81%)	⬇️
pkg/scheduler/plugins/elasticquota/pod_handler.go	59.25% <70.37%> (+12.48%)	⬆️

... and 4 files with indirect coverage changes

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[hormes]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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Needs approval from an approver in each of these files:

• pkg/features/OWNERS [hormes]
• pkg/scheduler/OWNERS [hormes]
• pkg/webhook/OWNERS [hormes]

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