Add config file

[LightDimf]

Add config file with, at least possibility to disable some block shapes or ever entire categories in mod.

Some shapes don't fit well to some modpacks and modded servers. Modpack/server developers, or just users may decipe that some shapes are superfluous or completely undesirable.

I working on my custom modpack for my server and I don't want some shape categories at all, but can't disable it.