[I] Support reading/writing key-value metadata from/to ColumnMetaData [arrow]

[via GitHub]

clee704 opened a new issue, #41579:
URL: https://github.com/apache/arrow/issues/41579

   ### Describe the enhancement requested
   
   According to the standard, ColumnMetaData can have key_value_metadata which 
is a list of KeyValue.
   
   https://parquet.apache.org/docs/file-format/metadata/
   
   
![image](https://github.com/apache/arrow/assets/220039/bdf99564-b83e-4690-a3be-f3e522fb929b)
   
   ### Component(s)
   
   C++


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