add access transforming capabilities

build-data/paper.at

@@ -0,0 +1,6 @@
+# You can use this file to change the access modifiers on a member
+# This line would make the field rollAmount public in Bee
+#public net.minecraft.world.entity.animal.Bee rollAmount
+# This line would make the field public and remove the final modifier
+#public-f net.minecraft.network.protocol.game.ClientboundChatPacket sender
+# Leave out the member and it will apply to the class itself