compares two lists of values and returns a list of the elements from newInlets that need to be added to the current list, as well as the elements in currentInlets that no longer need to exist.
the list of elements that needed to be added to or removed from current Inlets to make it match the list in newInlets
compares two lists of values and returns a list of the elements from newInlets that need to be added to the current list, as well as the elements in currentInlets that no longer need to exist.