Added support to read and write nested dictionaries to parquet

[jorgecarleitao]

Closes #1091
Closes #1174

Note that this preserves the dictionary-encoding structure of the dictionary, thereby ensuring that

• serializing to parquet does not unpack
• deserializing from parquet does not unpack
• the data in parquet is dictionary-encoded

[codecov]

Codecov Report

Merging #1175 (eae9244) into main (dc77578) will decrease coverage by 0.24%.
The diff coverage is 67.05%.

@@            Coverage Diff             @@
##             main    #1175      +/-   ##
==========================================
- Coverage   83.69%   83.44%   -0.25%     
==========================================
  Files         365      363       -2     
  Lines       35873    36246     +373     
==========================================
+ Hits        30023    30247     +224     
- Misses       5850     5999     +149     

Impacted Files	Coverage Δ
...t/read/deserialize/fixed_size_binary/dictionary.rs	39.56% <5.55%> (-48.54%)	⬇️
src/io/parquet/read/deserialize/mod.rs	72.27% <27.77%> (-13.54%)	⬇️
...c/io/parquet/read/deserialize/dictionary/nested.rs	60.18% <60.18%> (ø)
src/io/parquet/write/mod.rs	86.50% <75.00%> (+5.82%)	⬆️
...c/io/parquet/read/deserialize/binary/dictionary.rs	90.47% <91.07%> (+1.58%)	⬆️
...o/parquet/read/deserialize/primitive/dictionary.rs	93.06% <91.80%> (-0.27%)	⬇️
src/io/parquet/write/dictionary.rs	86.33% <98.66%> (+1.77%)	⬆️
src/array/primitive/mod.rs	81.04% <100.00%> (ø)
src/io/parquet/read/deserialize/binary/nested.rs	79.41% <100.00%> (+3.54%)	⬆️
src/io/parquet/read/deserialize/boolean/nested.rs	75.82% <100.00%> (+4.39%)	⬆️
... and 13 more

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