Add Railcraft NEI handlers to height hack (#16030)

* Add Railcraft NEI handlers to height hack

* Add default comment to top of `heighthackhandlers.cfg`

config/NEI/heighthackhandlers.cfg

@@ -1,3 +1,7 @@
+# Each line in this file should either be a comment (line starts with '#'), or a fully-qualified class name (that
+# includes the package name) for a recipe handler. Wildcard patterns ('*') can be used to catch multiple classes with a
+# single entry.
+# If you delete this file, it will be regenerated with the default height hacked handlers list.
 buildcraft.compat.nei.*
 cofh.thermalexpansion.plugins.nei.handlers.*
 crazypants.enderio.nei.*
@@ -6,4 +10,5 @@ ic2.neiIntegration.core.recipehandler.*
 mariculture.plugins.nei.*
 redgear.brewcraft.plugins.nei.*
 tconstruct.plugins.nei.*
+tonius.neiintegration.mods.railcraft.*
 WayofTime.alchemicalWizardry.client.nei.*