Implement consistent logging between optional projects and optional profiles

Maven 4 introduces optional profiles and optional projects. However, the feedback provided to the user on whether a project or profile has been skipped is inconsistent between the two (see image attached). 

For profiles, it will be logged twice: before and after the build.
For projects, it will be logged once: before the build.

The idea would be to log the information for skipped optional projects after the build as well.