Print the 'FixedSizeBinaryArray' like a normal 'BinaryArray'

[GrandChaman]

Which issue does this PR close?

Closes #1096.

Rationale for this change

See #1096.

What changes are included in this PR?

A new match arm has been added to the array_value_to_string function to allow pretty printing FixedSizeBinaryArray.

Are there any user-facing changes?

Not directly.

[liukun4515]

LGTM

[alamb]

Thank you @GrandChaman -- also for the test ❤️

[alamb]

The tests are failing due to an unrelated reason -- see #1102 -- will resolve them and get back to this

[alamb]

FYI @GrandChaman I have merged master to this branch, and hopefully we'll get a clean CI run now

[alamb]

I also pushed a fix for rust fmt: 39e8326

[codecov-commenter]

Codecov Report

Merging #1097 (39e8326) into master (3dca969) will increase coverage by 0.00%.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #1097   +/-   ##
=======================================
  Coverage   82.31%   82.31%           
=======================================
  Files         168      168           
  Lines       49420    49421    +1     
=======================================
+ Hits        40681    40683    +2     
+ Misses       8739     8738    -1     

Impacted Files	Coverage Δ
arrow/src/util/display.rs	19.62% <0.00%> (-0.19%)	⬇️
arrow/src/datatypes/datatype.rs	66.38% <0.00%> (-0.43%)	⬇️
arrow/src/array/transform/mod.rs	84.86% <0.00%> (ø)
parquet_derive/src/parquet_field.rs	66.43% <0.00%> (+0.68%)	⬆️

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[alamb]

Thanks again @GrandChaman