Nested intersection entities

[TomMalow]

XrmContext currently supports intersections entities where an interface is generated containing the intersected attributes of two entities. However, nested intersection is not currently possible.

Say you have 3 entities: A, B, and C. The three entities all have something in common but A and B have more in common than C. So in this case I would like to be able to have two interface; IAB and IABC. I should then be able to cast IABC -> IAB but not from IAB -> IABC.

The argument for intersection would then look something like the following: "intersect", "IAB:A;B, IABC:IAB;C"