Standardize pattern for controlling optional Outputs

### Motivation

In some components we want optional outputs that also cause different behavior in the component. A good example is whether we want a 1s complement adder to add the carry-out to the final sum or to leave it as a carry-out and produce sum-1.

### Desired solution

Two solutions are immediately apparent: Supply only a boolean that causes a similarly named output to be added and behavior modified, or supply a nullable Logic? which causes the different configuration and is assigned the new output value (which requires an actual output be added and connected to the passed in Logic).

### Alternatives considered

_No response_

### Additional details

_No response_

Start by comparing the two optional-output approaches described in the issue and inspect existing component patterns for optional outputs. The issue names no files or tests; the work is done when one standard is selected and its effect on the optional output and component behavior is defined.

Written by the indexing model from the issue text.