JniTrRny

# UPDATES since this pull request is quite finalized, with all checks finished (except one; I tried to do it, but I think it'd be better to leave it there)...

It was fun while it lasted :)

sounds good, I'll add it now or later if I'm free.

Yah that was the last minute decision to slap a `copy()` on top of it

> What about underlined text dividers like the ones I use in my mod?  > > [My code for this.](https://github.com/MEEPofFaith/prog-mats-java/blob/74fff2dceffa8fa4c9228ff8e6e2ce7d142e2e63/src/progressed/ProgMats.java#L302) Looks interesting, guess I'll make it looks like the...