Changed AEGlassMaterial to Materials

Preparation in case we need more to support custom non solid, non
opaque, or similar blocks.
Removed custom fullSize/opaque blocks in favour of Material

src/main/java/appeng/block/misc/QuartzFixtureBlock.java

@@ -81,7 +81,7 @@ public class QuartzFixtureBlock extends AEBaseBlock implements IOrientableBlock
 
     public QuartzFixtureBlock() {
         super(defaultProps(Material.MISCELLANEOUS).doesNotBlockMovement().hardnessAndResistance(0).lightValue(14)
-                .sound(SoundType.GLASS));
+                .sound(SoundType.GLASS).notSolid());
 
         this.setDefaultState(getDefaultState().with(FACING, Direction.UP).with(ODD, false));
     }
@@ -199,9 +199,4 @@ public class QuartzFixtureBlock extends AEBaseBlock implements IOrientableBlock
         return new MetaRotation(w, pos, FACING);
     }
 
-    @Override
-    public boolean isOpaque() {
-        return false;
-    }
-
 }