Add hash method for RayVector

[alexej-jordan]

No description provided.

[alexej-jordan]

With this notion we already have a good distinction what could be equal. The disadvantage is that calculating the sign could be too demanding for more complex coefficient fields? If so, we could utilize the efficient is_zero function: Base.hash(x::RayVector, h::UInt) = hash(iszero.(x), hash(coefficient_field(x), h))

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.31%. Comparing base (4d753d8) to head (7e21a09).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4354   +/-   ##
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  Coverage   84.31%   84.31%           
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  Files         649      649           
  Lines       86345    86346    +1     
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+ Hits        72799    72800    +1     
  Misses      13546    13546           

Files with missing lines	Coverage Δ
src/PolyhedralGeometry/iterators.jl	92.09% <100.00%> (+0.04%)	⬆️