Added support to write LargeUtf8 and LargeBinary to Avro

[illumination-k]

• convert LargeUtf8 and LargeBinary schema to avro::String and avro::Bytes when converting from datatype to avro schema.
• adding a test for LargeUtf8 and LargeBinary io

[codecov]

Codecov Report

Merging #828 (de46e98) into main (2c4dbb2) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #828      +/-   ##
==========================================
+ Coverage   71.55%   71.57%   +0.02%     
==========================================
  Files         326      326              
  Lines       17643    17645       +2     
==========================================
+ Hits        12624    12630       +6     
+ Misses       5019     5015       -4     

Impacted Files	Coverage Δ
src/io/avro/write/schema.rs	68.57% <100.00%> (+1.90%)	⬆️
src/io/avro/write/serialize.rs	84.41% <0.00%> (+2.59%)	⬆️

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[jorgecarleitao]

Woops, forgot to convert the schema :/ Many thanks, @illumination-k !