* Fixes#2680: Use a shorter cable anchor model when blocked by a facade.
* Fixes#2664: Prevent anchors from creating intersection.
Replaced the simple List<ResourceLocation> for the static models with a
new container also indicating a solid part, which can be used to prevent
the creation of an intersection.
Reduces the visibility of some methods as these should be access through the public methods of Block or the overridden ones.
Removes now useless getCheckedSubBlocks.
YoungOnion