koord-scheduler: support node cpu amplification

[zqzten]

Ⅰ. Describe what this PR does

This is the scheduler part of Node CPU amplification. It implements below logic described in the proposal:

On koord-scheduler side, a scheduling plugin filters and scores Nodes with similar logic to the NodeResourcesFit plugin, but with one difference: It amplifies the request of CPUSet Pods with the Node's CPU amplification ratio, as CPUSet Pods would get real physical CPUs requested so that their requests would occupy more CPU resources than what they specify on Nodes with allocatable CPU amplified. For example, a CPUSet Pod with CPU request 1 would occupy 1 physical CPU on a Node, if the Node's CPU amplification ratio is 2, the Pod would actually occupy 2 amplified CPUs (which are mapped to 1 physical CPU) on this Node.

Ⅱ. Does this pull request fix one issue?

Part of #1539

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

[zqzten]

/hold for UT

[codecov]

Codecov Report

Patch coverage: 70.03% and no project coverage change.

Comparison is base (a21d99f) 65.82% compared to head (facedf7) 65.82%.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #1602    +/-   ##
========================================
  Coverage   65.82%   65.82%            
========================================
  Files         374      379     +5     
  Lines       39484    39751   +267     
========================================
+ Hits        25992    26168   +176     
- Misses      11609    11679    +70     
- Partials     1883     1904    +21     

Flag	Coverage Δ
unittests	65.82% <70.03%> (+<0.01%)	⬆️

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

Files Changed	Coverage Δ
...g/scheduler/plugins/nodecpuamplification/plugin.go	59.68% <59.68%> (ø)
...lugins/nodecpuamplification/resource_allocation.go	74.19% <74.19%> (ø)
...cheduler/plugins/nodecpuamplification/test_util.go	81.25% <81.25%> (ø)
...er/plugins/nodecpuamplification/least_allocated.go	85.71% <85.71%> (ø)
...ler/plugins/nodecpuamplification/most_allocated.go	86.95% <86.95%> (ø)

... and 2 files with indirect coverage changes

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[koordinator-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[zqzten]

/unhold
@eahydra PTAL

[zqzten]

/close as replaced by the impl of #1677