Fixes anchor rendering (#2698)

* 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.

src/main/java/appeng/block/networking/BlockWireless.java

@@ -21,6 +21,7 @@ package appeng.block.networking;
 
 import java.util.Collections;
 import java.util.List;
+
 import javax.annotation.Nullable;
 
 import net.minecraft.block.properties.IProperty;