First draft for the test of inequalities.
Update manifest for itasc_solver_test
A first example for inequality test.
The unit test has working values.
Correct the unit test.
Use the structure Priority to gather data relative to each task level.
Todos and cleanup.
Correct confusion on the handling of nc

It is a parameter of the Priority class.
also add debug commands.
Add two tests. Adapt run.ops accordingly.
Correct the comparison method.
Only run the test once.
Use a std::vector rather than a VectorXd for the inequalities.
The main test file is only a symbolic link now
Correct the writing of inequalities.

We use now the following system:
0: equality considered.
1: lower bound considered (only)
2: upper bound considered (only)
3: both bounds considered.