Label next to key

[r3ps4J]

Hi! This library is looking really good, but I was wondering if it would be possible to add a way to draw a label alongside the key. That way we can inform players about what the key actually does. Similar to how is done here: https://github.com/Mobius1/vPrompt

Based on the style of the prompts of this resource, I think having the label as an extra box next to the the key box makes the most sense. But I'll leave that part up to you guys!