added change landfill misc module

map_gen/misc/change_landfill_tile.lua

@@ -0,0 +1,26 @@
+local Event = require 'utils.event'
+
+local tile
+
+Event.add(
+    defines.events.on_player_built_tile,
+    function(event)
+        local item = event.item
+        if not item or not item.valid then
+            return
+        end
+
+        if event.item.name == 'landfill' then
+            local tiles = event.tiles
+            for i = 1, #tiles do
+                tiles[i].name = tile
+            end
+            local surface = game.surfaces[event.surface_index]
+            surface.set_tiles(tiles)
+        end
+    end
+)
+
+return function(tile_name)
+    tile = tile_name or 'sand-1'
+end