Change Bomb Implementation

- L and T shapes are no longer considered a match
- Bomb explodes WITH gems
- Bomb will  have a small sprite of the creating gem

Assets/Scripts/Services/GameBoardService.cs

@@ -306,6 +306,14 @@ namespace Services {
                     Gem currentGem = this.gameBoard.GetGemAt(new Vector2Int(x,y));
                     if (currentGem == null) {
                         int gemToUse = RandomUtils.RandomGemTypeAsInt();
+
+                        int iterations = 0;
+                        while (this.matchService.MatchesAt(new Vector2Int(x, y), (GemType)gemToUse) && iterations < 100)
+                        {
+                            gemToUse = RandomUtils.RandomGemTypeAsInt();
+                            iterations++;
+                        }
+
                         SpawnGem(new Vector2Int(x, y), (GemType)gemToUse);
                     }
                 }