inline: add game result support (#648)

* feat: add game to the list of inline query results

* fix: documentation and naming

inline.go

@@ -131,6 +131,8 @@ func inferIQR(result Result) error {
 		r.Type = "voice"
 	case *StickerResult:
 		r.Type = "sticker"
+	case *GameResult:
+		r.Type = "game"
 	default:
 		return fmt.Errorf("telebot: result %v is not supported", result)
 	}

inline_types.go

@@ -60,6 +60,16 @@ func (r *ResultBase) Process(b *Bot) {
 	}
 }
 
+// GameResult represents a game. Game is a content type
+// supported by Telegram, which can be sent back to the
+// user as a result for an inline query.
+type GameResult struct {
+	ResultBase
+
+	// ShortName is a unique identifier of the game.
+	ShortName string `json:"game_short_name"`
+}
+
 // ArticleResult represents a link to an article or web page.
 type ArticleResult struct {
 	ResultBase