Region select: add trully REPLACEMENT features to "WorldGuard REPLACEMENT plugin"

[VladOliinyk]

As for me, it is quite obvious that in the WorldGuard REPLACEMENT plugin should be more than just square regions. Doesn't it?

I suggest adding the polygon-based regions, so we will have not only squares/cubes but the POLYGON-based regions.

Like the WG has and what we can select via WorldEdit or FAWE.

Visual example to rule out misinterpretation:
https://i.ibb.co/mtMnXcx/image.jpg