OrdMultiDimSets

[LucasCavagna]

Implementation for multi dimensional sets, generalization to multi dimensions and variable step in order set

[LucasCavagna]

I decided to implement a new version for all ordered set operations. I used linked lists and different conditions to minimize the number of operations in the intersection process, supporting sets with multiple dimensions and variable steps. Then, I wrote a new version for union, difference, minus, and complement operations to also support multiple dimensions and variable steps.