Mining things (#21909)

* mining-doors

* mining-tiles

* mining-window

* Change copyright in meta.json

* Change license in attributions.yml

Resources/Prototypes/Stacks/floor_tile_stacks.yml

@@ -271,6 +271,27 @@
   maxCount: 30
   itemSize: 5
 
+- type: stack
+  id: FloorTileMining
+  name: mining floor tile
+  spawn: FloorTileItemMining
+  maxCount: 30
+  itemSize: 5
+
+- type: stack
+  id: FloorTileMiningDark
+  name: dark mining floor tile
+  spawn: FloorTileItemMiningDark
+  maxCount: 30
+  itemSize: 5
+
+- type: stack
+  id: FloorTileMiningLight
+  name: light mining floor tile
+  spawn: FloorTileItemMiningLight
+  maxCount: 30
+  itemSize: 5
+
 - type: stack
   id: FloorTileBar
   name: item bar floor tile