Fix Crash When using Debug Blocks.

Register Quartz/Fluix Blocks with BC Facades.

client/texture/MissingIcon.java

@@ -0,0 +1,62 @@
+package appeng.client.texture;
+
+import net.minecraft.util.IIcon;
+
+public class MissingIcon implements IIcon
+{
+
+	@Override
+	public int getIconWidth()
+	{
+		return ExtraTextures.getMissing().getIconWidth();
+	}
+
+	@Override
+	public int getIconHeight()
+	{
+		return ExtraTextures.getMissing().getIconHeight();
+	}
+
+	@Override
+	public float getMinU()
+	{
+		return ExtraTextures.getMissing().getMinU();
+	}
+
+	@Override
+	public float getMaxU()
+	{
+		return ExtraTextures.getMissing().getMaxU();
+	}
+
+	@Override
+	public float getInterpolatedU(double var1)
+	{
+		return ExtraTextures.getMissing().getInterpolatedU( var1 );
+	}
+
+	@Override
+	public float getMinV()
+	{
+		return ExtraTextures.getMissing().getMinV();
+	}
+
+	@Override
+	public float getMaxV()
+	{
+		return ExtraTextures.getMissing().getMaxV();
+	}
+
+	@Override
+	public float getInterpolatedV(double var1)
+	{
+		return ExtraTextures.getMissing().getInterpolatedV( var1 );
+	}
+
+	@Override
+	public String getIconName()
+	{
+		return ExtraTextures.getMissing().getIconName();
+	}
+
+}