Updated Forge to 1.12.2 RB (#3141)

* Updated Forge to 1.12.2 RB

Updated mappings to the MDK defaults for 1.12.2
Updated related depdencies

* With Forge 14.23 not available for < 1.12.2, we have to drop support.

With one potential fix for TE corruption, this step should be
reasonable.

src/main/java/appeng/client/render/cablebus/FacadeRenderState.java

@@ -44,7 +44,7 @@ public class FacadeRenderState
 
 	public int resolveTintColor( int tintIndex )
 	{
-		return Minecraft.getMinecraft().getItemColors().getColorFromItemstack( this.textureItem, tintIndex );
+		return Minecraft.getMinecraft().getItemColors().colorMultiplier( this.textureItem, tintIndex );
 	}
 
 }