merging with lbjava's ilp-solver interface

Changes:

• merges the two ILPSolver interfaces (in this package and the one in LBJava)
• merging the two gurobi solvers: for most of the syntax I have used that of LBJava's.

If this get's merged, we can remove IlpSolver.java, GurobiHook.java and oJAlgoHook.java from lbjava and add this illinios-inference as LBJava's dependency.

FYI @mssammon

Looking at the changes, gitlab's diff is terrible....

Added 1 commit:

• 540afadb - removing some unused dependencies.

There is a CI runner on morgoth. Look at BabySRL and SRL to see the setup.

I remember we discussed how to use the CI on morgoth, but I don't remember the steps now ...

Added 2 commits:

• ceb601b9 - 1 commit from branch master
• 4b466ca0 - Merge remote-tracking branch 'origin/master' into daniel_mergeWithLBjavaIlpSolver

Added 1 commit:

• 16dac70b - adding back SL dependency

@christod it passes now ...

Status changed to merged

mentioned in commit f4ca1eec

Deploying now