Async variant of Commit(ITransactionController) Commits this unit of work. It will first add all entities in the added collections to the correct bins, then it will start by first inserting all new entities, then saving all updates and then performing the deletes. This order can be controlled by the constructor of the unit of work which allows users to define a different work order.

Task<int> IUnitOfWorkCore.CommitAsync(
	ITransactionController controller,
	CancellationToken cancellationToken
)

Private Function CommitAsync ( 
	controller As ITransactionController,
	cancellationToken As CancellationToken
) As Task(Of Integer) Implements IUnitOfWorkCore.CommitAsync