Position2D.cs : How to get sort order in 2d space (and probably 3d space)

[nullorvoid]

Implementing the IComparable means that we have to implement the correct sorting order, I am thinking of using the value from 0 to do the ordering.

For instance:

Addition:
4|5|6
3|4|5
2|3|4

Multiplication:
3|6|9
2|4|6
1|2|3

Square + Addition:
10|13|18
05|08|13
01|05|10

Simple List:
7|8|9
4|5|6
1|2|3

This will probably be extended into 3d later so the system should work as such. The main question is whether or not we need to do this or whether we can implement IEqualityComparer for these interfaces and that will all that's required.

msdn

Tests also required and will be TODO in PositionTests.cs