Move most detectables to new interface

BinaryObjectScanner.FileType/BDPlusSVM.cs

@@ -0,0 +1,49 @@
+using System;
+using System.IO;
+using BinaryObjectScanner.Interfaces;
+
+namespace BinaryObjectScanner.FileType
+{
+    /// <summary>
+    /// BD+ SVM
+    /// </summary>
+    public class BDPlusSVM : IDetectable
+    {
+        /// <inheritdoc/>
+        public string Detect(string file, bool includeDebug)
+        {
+            if (!File.Exists(file))
+                return null;
+
+            using (var fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
+            {
+                return Detect(fs, file, includeDebug);
+            }
+        }
+
+        /// <inheritdoc/>
+        public string Detect(Stream stream, string file, bool includeDebug)
+        {
+            // If the BD+ file itself fails
+            try
+            {
+                // Create the wrapper
+                Wrappers.BDPlusSVM svm = Wrappers.BDPlusSVM.Create(stream);
+                if (svm == null)
+                    return null;
+
+                // Format the date
+                string date = $"{svm.Year:0000}/{svm.Month:00}/{svm.Day:00}";
+
+                // Return the formatted value
+                return $"BD+ {date}";
+            }
+            catch (Exception ex)
+            {
+                if (includeDebug) Console.WriteLine(ex);
+            }
+
+            return null;
+        }
+    }
+}