add a tile table

spacetimedb/src/tables.rs

@@ -21,9 +21,19 @@ pub struct Lobby {
 }
 
 #[table(name = wall)]
-pub struct Wall {
+pub struct DbWall {
     #[primary_key]
     pub lobby_id: u32,
 
-    pub tiles: Vec<Tile>,
+    pub tiles: Vec<DbTile>,
+}
+
+#[table(name = tile)]
+#[derive(Debug)]
+pub struct DbTile {
+    #[primary_key]
+    #[auto_inc]
+    pub id: u32,
+
+    pub tile: jong_types::Tile,
 }