Support reading var-length type (STRING/BYTES/BIG_DECIMAL) as murmur3 32/64/128 bits hash

[Jackie-Jiang]

This is useful for calculating distinct count

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 11.58537% with 145 lines in your changes missing coverage. Please review.

Project coverage is 63.15%. Comparing base (59551e4) to head (fce300b).
Report is 1944 commits behind head on master.

Files with missing lines	Patch %	Lines
...java/org/apache/pinot/core/common/DataFetcher.java	0.00%	36 Missing ⚠️
...core/operator/docvalsets/TransformBlockValSet.java	0.00%	18 Missing ⚠️
...al/segment/index/readers/BigDecimalDictionary.java	0.00%	12 Missing ⚠️
...t/local/segment/index/readers/BytesDictionary.java	0.00%	12 Missing ⚠️
.../local/segment/index/readers/StringDictionary.java	0.00%	12 Missing ⚠️
...che/pinot/segment/spi/index/reader/Dictionary.java	0.00%	12 Missing ⚠️
...ache/pinot/spi/utils/hash/MurmurHashFunctions.java	54.54%	8 Missing and 2 partials ⚠️
...a/org/apache/pinot/core/common/DataBlockCache.java	0.00%	9 Missing ⚠️
...ore/operator/docvalsets/ProjectionBlockValSet.java	0.00%	9 Missing ⚠️
...pache/pinot/segment/local/io/util/ValueReader.java	50.00%	6 Missing ⚠️
... and 3 more

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #15213      +/-   ##
============================================
+ Coverage     61.75%   63.15%   +1.40%     
- Complexity      207     1375    +1168     
============================================
  Files          2436     2814     +378     
  Lines        133233   159164   +25931     
  Branches      20636    24376    +3740     
============================================
+ Hits          82274   100524   +18250     
- Misses        44911    51056    +6145     
- Partials       6048     7584    +1536     

Flag	Coverage Δ
custom-integration1	100.00% <ø> (+99.99%)	⬆️
integration	100.00% <ø> (+99.99%)	⬆️
integration1	100.00% <ø> (+99.99%)	⬆️
integration2	0.00% <ø> (ø)
java-11	63.10% <11.58%> (+1.39%)	⬆️
java-21	63.13% <11.58%> (+1.50%)	⬆️
skip-bytebuffers-false	63.15% <11.58%> (+1.40%)	⬆️
skip-bytebuffers-true	63.08% <11.58%> (+35.35%)	⬆️
temurin	63.15% <11.58%> (+1.40%)	⬆️
unittests	63.15% <11.58%> (+1.40%)	⬆️
unittests1	56.18% <11.58%> (+9.28%)	⬆️
unittests2	33.80% <4.26%> (+6.07%)	⬆️

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