Add const GetType and GetDatabase methods to GameInterface

include/loot/game_interface.h

@@ -33,6 +33,12 @@ class GameInterface {
 public:
   virtual ~GameInterface() = default;
 
+  /**
+   * @brief Get the game's type.
+   * @returns The game's type.
+   */
+  virtual GameType GetType() const = 0;
+
   /**
    *  @name Metadata Access
    *  @{
@@ -46,6 +52,14 @@ public:
    */
   virtual DatabaseInterface& GetDatabase() = 0;
 
+  /**
+   * @brief Get the database interface used for accessing metadata-related
+   *        functionality.
+   * @returns A reference to the game's DatabaseInterface. The reference remains
+   *          valid for the lifetime of the GameInterface instance.
+   */
+  virtual const DatabaseInterface& GetDatabase() const = 0;
+
   /**
    * @}
    * @name Plugin Data Access