setdomain for NormalizedPolynomialSpace

[jishnub]

With this PR, the following works:

julia> Derivative(NormalizedChebyshev(-1..1))
DerivativeWrapper : NormalizedChebyshev(-1..1) → Ultraspherical(1,-1..1)
 ⋅  0.7978845608028654   ⋅                   ⋅                   ⋅                  …   ⋅                  ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                  1.5957691216057308   ⋅                   ⋅                      ⋅                  ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                  2.3936536824085963   ⋅                      ⋅                  ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                  3.1915382432114616      ⋅                  ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                      ⋅                  ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                  …  4.787307364817193   ⋅                  ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                      ⋅                 5.585191925620058   ⋅                  ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                      ⋅                  ⋅                 6.383076486422923   ⋅                  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                      ⋅                  ⋅                  ⋅                 7.1809610472257885  ⋅
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                      ⋅                  ⋅                  ⋅                  ⋅                  ⋱
 ⋅   ⋅                   ⋅                   ⋅                   ⋅                  …   ⋅                  ⋅                  ⋅                  ⋅                  ⋱

This PR also drops support for ApproxFunBase v0.5

[codecov]

Codecov Report

Merging #74 (b38d32d) into master (6ecd066) will increase coverage by 0.15%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master      #74      +/-   ##
==========================================
+ Coverage   58.08%   58.24%   +0.15%     
==========================================
  Files          28       28              
  Lines        2455     2457       +2     
==========================================
+ Hits         1426     1431       +5     
+ Misses       1029     1026       -3     

Impacted Files	Coverage Δ
src/Spaces/Jacobi/JacobiOperators.jl	57.60% <75.00%> (+0.13%)	⬆️
src/Spaces/PolynomialSpace.jl	84.64% <100.00%> (+0.94%)	⬆️
src/Spaces/Jacobi/Jacobi.jl	59.40% <0.00%> (+0.99%)	⬆️

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