Breadcrumb component className inconsistency

[CheetoMao]

I'm submitting a ...

• bug report
• feature request
• support request

I'm labeling as 'designy' because the issue is regarding the class name of the component, but anyone can make this fix.

What is the current behavior?
The Breadcrumbs component does not match our naming schema

For bugs: please provide steps to reproduce and tell us a little about your environment (e.g., what OS and version of the package you're using)
If you inspect the Breadcrumb component you will notice that the rev- prefix is not there

What is the expected behavior?
The rev- prevfix should be present on all components so that the class names are consistent

[CheetoMao]

Note: At this point we can't just add rev- before all of the Breadcrumb classNames b/c that will break styles for any current Harmonium projects using the Breadcrumb component. A better solution would be to update the classNames to match our naming schema and then extend those styles to legacy .Breadcrumb classNames