1 1. Implement the SPD cone.
3 2. Make it work on a cartesian product of cones in the correct order.
5 3. Make it work on a cartesian product of cones in the wrong order
6 (apply a permutation before/after).
8 4. Add random_game() and use it to replace all of the tests where
9 the cone is irrelevant. This should be done only after we are
10 feature complete and sure that everything works.