Conaugh

I have several base entities, all with similar stuctures, which all inherit from an interface. When querying a parent object, the interface type is used rather than the concrete type....

Currently, `.Any()` is supported on enumerables within the query - e.g. `.Where(customer => customer.Orders.Any(o => o == order))`. It would be useful to be able to use `.Any()` on enumerables...