add restful api for coscheduling

[Wenshiqi222]

Signed-off-by: wenshiqi wen470366661@163.com

Ⅰ. Describe what this PR does

add restful api for coscheduling

Ⅱ. Does this pull request fix one issue?

implements #600

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

Merging #603 (37c44da) into main (7f599f7) will decrease coverage by 0.21%.
The diff coverage is 12.72%.

@@            Coverage Diff             @@
##             main     #603      +/-   ##
==========================================
- Coverage   68.94%   68.73%   -0.22%     
==========================================
  Files         178      179       +1     
  Lines       20850    20905      +55     
==========================================
- Hits        14376    14370       -6     
- Misses       5484     5539      +55     
- Partials      990      996       +6     

Flag	Coverage Δ
unittests	68.73% <12.72%> (-0.22%)	⬇️

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

Impacted Files	Coverage Δ
pkg/scheduler/plugins/coscheduling/core/core.go	35.51% <0.00%> (-5.65%)	⬇️
pkg/scheduler/plugins/coscheduling/core/gang.go	76.34% <ø> (ø)
...g/scheduler/plugins/coscheduling/plugin_service.go	63.63% <63.63%> (ø)
pkg/koordlet/runtimehooks/reconciler/reconciler.go	71.57% <0.00%> (-7.37%)	⬇️
...eduler/plugins/coscheduling/controller/podgroup.go	68.96% <0.00%> (-1.98%)	⬇️
pkg/util/httputil/reverseproxy.go	84.30% <0.00%> (-0.54%)	⬇️

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[hormes]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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