Add Support for Cast Function on MV Columns

[SabrinaZhaozyf]

Label: feature This PR adds support for Cast transform function for mv columns.

[codecov-commenter]

Codecov Report

Merging #9296 (55b9ca1) into master (74fd91a) will decrease coverage by 2.36%. The diff coverage is 9.05%.

:exclamation: Current head 55b9ca1 differs from pull request most recent head 4e67bda. Consider uploading reports for the commit 4e67bda to get more accurate results

@@             Coverage Diff              @@
##             master    #9296      +/-   ##
============================================
- Coverage     28.44%   26.08%   -2.37%     
+ Complexity       53       44       -9     
============================================
  Files          1861     1861              
  Lines         99226    99473     +247     
  Branches      15123    15144      +21     
============================================
- Hits          28225    25946    -2279     
- Misses        68272    70924    +2652     
+ Partials       2729     2603     -126     

Flag	Coverage Δ
integration1	26.08% <9.05%> (-0.06%)	:arrow_down:
integration2	?

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Impacted Files	Coverage Δ
...che/pinot/broker/routing/BrokerRoutingManager.java	85.31% <ø> (-0.57%)	:arrow_down:
...aggregation/function/AggregationFunctionUtils.java	70.00% <ø> (+0.76%)	:arrow_up:
.../pinot/plugin/inputformat/csv/CSVRecordReader.java	0.00% <0.00%> (ø)
.../plugin/inputformat/csv/CSVRecordReaderConfig.java	0.00% <0.00%> (ø)
...lugin/inputformat/parquet/ParquetRecordReader.java	0.00% <0.00%> (ø)
...inputformat/parquet/ParquetRecordReaderConfig.java	0.00% <0.00%> (ø)
...pinot/plugin/inputformat/parquet/ParquetUtils.java	0.00% <0.00%> (ø)
.../java/org/apache/pinot/query/QueryEnvironment.java	0.00% <0.00%> (ø)
...a/org/apache/pinot/query/planner/PlannerUtils.java	0.00% <0.00%> (ø)
...not/query/planner/logical/RelToStageConverter.java	0.00% <ø> (ø)
... and 223 more

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[siddharthteotia]

Yet to review the main logic. Thanks for addressing the main concern of INTMV v/s INT