refactor cpu pressure eviction framework

[luomingmeng]

What type of PR is this?

Enhancements

What this PR does / why we need it:

refactor cpu pressure eviction framework to make the eviction strategy be an independent eviction plugin, which is more friendly to metrics observation

Which issue(s) this PR fixes:

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: 43 lines in your changes are missing coverage. Please review.

Comparison is base (e8c5fa6) 53.59% compared to head (cc37e3a) 53.63%.

Files	Patch %	Lines
...cpu/dynamicpolicy/cpueviction/strategy/pressure.go	51.06%	21 Missing and 2 partials ⚠️
...gins/cpu/dynamicpolicy/cpueviction/cpu_eviciton.go	71.42%	9 Missing and 3 partials ⚠️
...olicy/cpueviction/strategy/pressure_suppression.go	45.45%	6 Missing ⚠️
...ynamicpolicy/cpueviction/strategy/pressure_load.go	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #395      +/-   ##
==========================================
+ Coverage   53.59%   53.63%   +0.03%     
==========================================
  Files         444      445       +1     
  Lines       49021    48998      -23     
==========================================
+ Hits        26273    26278       +5     
+ Misses      19791    19762      -29     
- Partials     2957     2958       +1     

Flag	Coverage Δ
unittest	53.63% <58.65%> (+0.03%)	⬆️

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