0.20 compatibility fix

res/modules/toml.lua

@@ -1,2 +1,4 @@
 print("WARNING: toml is replaced with built-in library, just remove 'require \"core:toml\"'")
+toml.serialize = toml.tostring
+toml.deserialize = toml.parse
 return toml

res/scripts/stdlib.lua

@@ -302,5 +302,3 @@ get_block_rotation = block.get_rotation
 set_block_rotation = block.set_rotation
 get_block_user_bits = block.get_user_bits
 set_block_user_bits = block.set_user_bits
-toml.serialize = toml.tostring
-toml.deserialize = toml.parse