No method to disable trees or add new ones

[LlubNek]

Ferroustry seems to lack any configuration at all, but in particular, there is no way to add new trees or disable unwanted trees.
Since Ferroustry trees are all the same layout, use the same models and seem to use textures derived from some template plus a colour, it should be possible to generate new trees on startup from a config file or datapack.

[Tfarcenim]

will look at in 1.16