Returns all objects in the database for the specified type and their children.
The query can be SQL or OQL (OQL is still under development).
Example:
IObjectMapper<Customer> mapper = Elementary.GetIObjectMapper<Customer>();
// Get all customers whose last name starts with "G"
IList<Customer> customers = mapper.GetCollectionWithChildren("LastName LIKE 'G%'");
Console.WriteLine(customers[0].Orders); // Orders is populated