Config Options for adjusting world gen

[Angular-Angel]

I like the mod overall, but there are lots of little things I would like to be able to change. For example, I like the wider and more traversable rives, but I think they're a little too wide - being able to adjust that value in the config would be nice. I also feel it makes the terrain a little too smooth, and I miss some of the various weird terrain you could get in vanilla - giant overhangs and floating islands and the like. You can still get some overhangs, but overall with this mod, even amplified is relatively sensible, and I'd like to be able to adjust that.

[Corvus20]

Other things I would like to change are the size of the biomes, and the ability to disable this mod's affect on the end (because Better End Forge has its own generation option that seems to get overridden with when this mod is active)

[KdotJPG]

Looking to add per-mod and/or per-dimension toggling to the next release!

Other config options aren't out of the question either. I definitely want to tone down river size, since I (and others who have commented) do feel they're too big in their default form regardless.