Add gt eq dyn scalar kernel

[matthewmturner]

Which issue does this PR close?

Closes #1113 task gt_eq_dyn_scalar

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

[codecov-commenter]

Codecov Report

Merging #1117 (aba95d6) into master (1cbda7a) will decrease coverage by 0.00%.
The diff coverage is 85.18%.

@@            Coverage Diff             @@
##           master    #1117      +/-   ##
==========================================
- Coverage   82.34%   82.34%   -0.01%     
==========================================
  Files         169      169              
  Lines       49746    49773      +27     
==========================================
+ Hits        40962    40984      +22     
- Misses       8784     8789       +5     

Impacted Files	Coverage Δ
arrow/src/compute/kernels/comparison.rs	90.09% <85.18%> (-0.13%)	⬇️
arrow/src/datatypes/datatype.rs	66.38% <0.00%> (-0.43%)	⬇️
arrow/src/array/transform/mod.rs	85.56% <0.00%> (ø)

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