add support for MOI.DualGeometricMeanCone and MOI.DualRelativeEntropyCone

[araujoms]

Can't be merged before jump-dev/MathOptInterface.jl#3041

Something I don't understand is that while MOI.VectorOfVariables-in-MOI.GeometricMeanCone is bridged to MOI.VectorAffineFunction{Float64}-in-MOI.GeometricMeanCone, as we want, MOI.VectorOfVariables-in-MOI.DualGeometricMeanCone is not bridged to MOI.VectorAffineFunction{Float64}-in-MOI.DualGeometricMeanCone, but instead the bridge DualGeoMeanBridge is used.

Any ideas @blegat? Clearly this is a consequence of #871, but somehow you prevented this problem from arising elsewhere.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.84%. Comparing base (64c0c03) to head (715fcc6).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #875      +/-   ##
==========================================
+ Coverage   95.78%   95.84%   +0.05%     
==========================================
  Files          56       56              
  Lines        9157     9263     +106     
==========================================
+ Hits         8771     8878     +107     
+ Misses        386      385       -1     

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[araujoms]

The VectorOfVariables bug will be fixed in jump-dev/MathOptInterface.jl#3041