improve/simplify MOI wrapper

[chriscoey]

No description provided.

[codecov]

Codecov Report

Merging #783 (44bc5c3) into master (aca1f15) will decrease coverage by 0.19%.
The diff coverage is 93.22%.

@@            Coverage Diff             @@
##           master     #783      +/-   ##
==========================================
- Coverage   91.93%   91.74%   -0.20%     
==========================================
  Files          54       54              
  Lines        8324     8156     -168     
==========================================
- Hits         7653     7483     -170     
- Misses        671      673       +2     

Impacted Files	Coverage Δ
src/MathOptInterface/wrapper.jl	90.65% <92.15%> (-3.39%)	⬇️
src/MathOptInterface/cones.jl	98.12% <100.00%> (+0.01%)	⬆️
src/Models/Models.jl	96.77% <100.00%> (+14.01%)	⬆️
src/Solvers/Solvers.jl	91.37% <100.00%> (+0.02%)	⬆️
src/linearalgebra/sparse.jl	86.48% <0.00%> (-8.11%)	⬇️
src/Solvers/process.jl	93.05% <0.00%> (-2.32%)	⬇️
src/Cones/Cones.jl	95.41% <0.00%> (-1.84%)	⬇️
src/Cones/epirelentropy.jl	97.18% <0.00%> (-0.81%)	⬇️
src/Solvers/systemsolvers/symindef.jl	98.55% <0.00%> (-0.73%)	⬇️
... and 2 more

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