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/FacadeWithBlockBakedModel.java

@@ -79,7 +79,7 @@ public class FacadeWithBlockBakedModel implements IBakedModel
 			{
 				if( sprite.getTint() != -1 )
 				{
-					builder.setColor( Minecraft.getMinecraft().getItemColors().getColorFromItemstack( this.textureItem, sprite.getTint() ) );
+					builder.setColor( Minecraft.getMinecraft().getItemColors().colorMultiplier( this.textureItem, sprite.getTint() ) );
 				}
 				builder.setTexture( sprite.getSprite() );
 				builder.setDrawFaces( EnumSet.of( EnumFacing.NORTH ) );