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/client/render/model/UVLModelLoader.java

@@ -32,6 +32,7 @@ import java.lang.reflect.Type;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
+
 import javax.annotation.Nullable;
 
 import com.google.common.base.Charsets;