add a histogram util

[hormes]

Ref to #1361

This tool comes from kubernetes/autoscaler, thanks to the open source predecessors.

[codecov]

Codecov Report

Patch coverage: 72.60% and project coverage change: +0.07 🎉

Comparison is base (db67e64) 64.65% compared to head (820b566) 64.72%.

❗ Current head 820b566 differs from pull request most recent head b5895fd. Consider uploading reports for the commit b5895fd to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1365      +/-   ##
==========================================
+ Coverage   64.65%   64.72%   +0.07%     
==========================================
  Files         325      329       +4     
  Lines       33678    33970     +292     
==========================================
+ Hits        21773    21986     +213     
- Misses      10318    10378      +60     
- Partials     1587     1606      +19     

Flag	Coverage Δ
unittests	64.72% <72.60%> (+0.07%)	⬆️

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

Impacted Files	Coverage Δ
pkg/util/histogram/histogram_mock.go	0.00% <0.00%> (ø)
pkg/util/histogram/decaying_histogram.go	72.58% <72.58%> (ø)
pkg/util/histogram/histogram_options.go	78.84% <78.84%> (ø)
pkg/util/histogram/histogram.go	80.76% <80.76%> (ø)

... and 1 file with indirect coverage changes

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[FillZpp]

/lgtm

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