Made dyn Array and Scalar usable in #[derive(PartialEq)]

[jorgecarleitao]

A small quality of life, as people can use these in structs and enums and still leverage the partial equality we offer in this crate.

[codecov]

Codecov Report

Merging #680 (9918726) into main (89921d3) will increase coverage by 0.06%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##             main     #680      +/-   ##
==========================================
+ Coverage   69.60%   69.67%   +0.06%     
==========================================
  Files         301      301              
  Lines       16765    16844      +79     
==========================================
+ Hits        11670    11736      +66     
- Misses       5095     5108      +13     

Impacted Files	Coverage Δ
src/array/equal/mod.rs	86.45% <33.33%> (-3.76%)	⬇️
src/scalar/equal.rs	60.00% <33.33%> (-5.22%)	⬇️
src/io/ipc/read/reader.rs	79.80% <0.00%> (+6.81%)	⬆️

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