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Merge stable/1.2 features to master

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- Update Interdiction type problem data reading in `MibSModel`; - Update two Benders cuts to reflect the changes in MibS valid inequality paper; - Add a fractional cut option to...

The main changes in this draft: - add gaps to related functions in UB problems setup and cut generations; - add pessimistic related parameters and variables; add containers and tags...

SYMPHONY stable/5.7 report infeasibility for the attached problem, while CPLEX and Cbc report an optimal solution. > Starting Preprocessing... Preprocessing finished... coefficients modified: 3603 constraints removed: 9337 variables fixed: 22360...

This PR fixed a bug in [a previous change](https://github.com/coin-or/MibS/pull/131#issue-2019981938) #131 that skipped the generation of an improving direction intersection cut when the generation problem returned an all-zero solution. The new...

Check input matrix orientation when loading problem data

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To fix the bug in #134: since `loadProblemData()` expects a column-oriented data matrix, we consider adding a check to the beginning of the function and creating a reversed copy if...