XboxISO separate functions for partition extraction

SabreTools.Wrappers/XboxISO.Extraction.cs

@@ -9,15 +9,30 @@ public bool Extract(string outputDirectory, bool includeDebug)
         {
             long initialOffset = _dataSource.Position;
 
+            bool success = ExtractVideoPartition(outputDirectory, includeDebug, initialOffset);
+            success |= ExtractGamePartition(outputDirectory, includeDebug);
+
+            return success;
+        }
+
+        /// <summary>
+        /// Extract all files from the Video ISO partition only
+        /// </summary>
+        public bool ExtractVideoPartition(string outputDirectory, bool includeDebug, long initialOffset = 0)
+        {
             // Extract all files from the video partition
             var videoWrapper = new ISO9660(VideoPartition, _dataSource, initialOffset, _dataSource.Length);
-            bool success = videoWrapper?.Extract(outputDirectory, includeDebug) ?? false;
+            return videoWrapper?.Extract(outputDirectory, includeDebug) ?? false;
+        }
 
+        /// <summary>
+        /// Extract all files from the XDVDFS (XISO) game partition only
+        /// </summary>
+        public bool ExtractGamePartition(string outputDirectory, bool includeDebug, long initialOffset = 0)
+        {
             // Extract all files from the game partition
             var gameWrapper = new XDVDFS(GamePartition, _dataSource, initialOffset + Constants.XisoOffsets[XGDType], Constants.XisoLengths[XGDType]);
-            success |= gameWrapper?.Extract(outputDirectory, includeDebug) ?? false;
-
-            return success;
+            return gameWrapper?.Extract(outputDirectory, includeDebug) ?? false;
         }
     }
 }