Fix - shift operators work only for int, short, ushort, byte, sbyte.

[DavidCizek]

No description provided.

[codecov]

Codecov Report

Merging #76 into master will increase coverage by 1.44%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
+ Coverage   79.12%   80.57%   +1.44%     
==========================================
  Files          25       25              
  Lines        2898     2898              
  Branches      425      425              
==========================================
+ Hits         2293     2335      +42     
+ Misses        462      425      -37     
+ Partials      143      138       -5

Impacted Files	Coverage Δ
src/System.Linq.Dynamic.Core/ExpressionParser.cs	76.43% <100%> (+2.86%)	⬆️

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[StefH]

Thanks.