Merge pull request #27 from JuliaOpt/bl/rmslack

Simplify thanks to bridges

Merge pull request #23 from JuliaOpt/bl/moi8

Update to MOI v0.8

Merge pull request #22 from JuliaOpt/bl/moi7

Update to MOI v0.7

Update CI

Add mock_test_generator

Fix constraint primal for SingleVariable constraint

Fix allow_failures

Fix CI