feat: Update GameVersion enum to include labels for game releases

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_dart/lib/src/data_types/game_version.dart

@@ -1,18 +1,19 @@
 /// Supported game releases and their associated file extensions.
 enum GameVersion {
   /// Wolfenstein 3D Shareware (.WL1)
-  shareware("WL1"),
+  shareware("WL1", "Wolf3D Shareware"),
 
   /// Wolfenstein 3D Full Retail (.WL6)
-  retail("WL6"),
+  retail("WL6", "Wolf3D Retail"),
 
   /// Spear of Destiny Full Version (.SOD)
-  spearOfDestiny("SOD"),
+  spearOfDestiny("SOD", "Spear of Destiny"),
 
   /// Spear of Destiny Demo (.SDM)
-  spearOfDestinyDemo("SDM")
+  spearOfDestinyDemo("SDM", "Spear of Destiny Demo")
   ;
 
   final String fileExtension;
-  const GameVersion(this.fileExtension);
+  final String label;
+  const GameVersion(this.fileExtension, this.label);
 }