Implement BD+ detection (#24)

BurnOutSharp/ProtectionType/BD+.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace BurnOutSharp.ProtectionType
+{
+    public class BDPlus : IPathCheck
+    {
+        // TODO: Figure out how to detect version
+        /// <inheritdoc/>
+        public string CheckPath(string path, bool isDirectory, IEnumerable<string> files)
+        {
+            // Multiple .svm files should always be present, but as far as I can tell, 00000.svm is the first one made and should be present no matter what.
+            if (isDirectory)
+            {
+                if (files.Any(f => f.Contains(Path.Combine("BDSVM", "00000.svm")))
+                    && files.Any(f => f.Contains(Path.Combine("BDSVM", "BACKUP", "00000.svm"))))
+                {
+                    return "BD+";
+                }
+            }
+            return null;
+        }
+    }
+}
+

README.md

@@ -26,6 +26,7 @@ Below is a list of the protections that can be detected using this code:
 - ActiveMARK / ActiveMARK 5
 - Alpha-DVD
 - Alpha-ROM
+- BD+
 - Bitpool
 - ByteShield
 - Cactus Data Shield