Async variant of Commit(ITransaction). 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.

public Task<int> CommitAsync(
	ITransaction transactionToUse
)

Public Function CommitAsync ( 
	transactionToUse As ITransaction
) As Task(Of Integer)