Added support to read and write extension types to and from parquet

[jorgecarleitao]

Extensions can now be written and read to and from parquet (roundtrip), thereby allowing the extension to persist, just like IPC. This is achieved by using the extension available in the schema to derive the arrays' extension.

Closes #392

[codecov]

Codecov Report

Merging #396 (357ad2b) into main (f326fed) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #396      +/-   ##
==========================================
+ Coverage   81.13%   81.15%   +0.02%     
==========================================
  Files         347      347              
  Lines       21991    22003      +12     
==========================================
+ Hits        17842    17857      +15     
+ Misses       4149     4146       -3     

Impacted Files	Coverage Δ
src/datatypes/mod.rs	71.42% <100.00%> (+1.93%)	⬆️
src/io/ipc/convert.rs	94.95% <100.00%> (+0.04%)	⬆️
src/io/parquet/read/binary/dictionary.rs	81.66% <100.00%> (+0.63%)	⬆️
src/io/parquet/read/fixed_size_binary.rs	51.28% <100.00%> (+0.64%)	⬆️
src/io/parquet/read/mod.rs	53.01% <100.00%> (+1.79%)	⬆️
src/io/parquet/write/dictionary.rs	72.72% <100.00%> (ø)
src/io/parquet/write/mod.rs	51.28% <100.00%> (ø)
src/io/parquet/write/schema.rs	54.58% <100.00%> (ø)
tests/it/io/ipc/write/file.rs	100.00% <100.00%> (ø)
tests/it/io/parquet/mod.rs	94.90% <100.00%> (+0.02%)	⬆️
... and 1 more

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