Add Shrinker PE detection

BurnOutSharp/PackerType/Shrinker.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using BurnOutSharp.ExecutableType.Microsoft.PE;
+using BurnOutSharp.Matching;
+
+namespace BurnOutSharp.PackerType
+{
+    // TODO: Add extraction
+    public class Shrinker : IPEContentCheck
+    {
+        /// <inheritdoc/>
+        public string CheckPEContents(string file, PortableExecutable pex, bool includeDebug)
+        {
+            // Get the sections from the executable, if possible
+            var sections = pex?.SectionTable;
+            if (sections == null)
+                return null;
+
+            // Get the .shrink0 and .shrink2 sections, if they exist -- TODO: Confirm if both are needed or either/or is fine
+            bool shrink0Section = pex.ContainsSection(".shrink0", true);
+            bool shrink2Section = pex.ContainsSection(".shrink2", true);
+            if (shrink0Section || shrink2Section)
+                return "Shrinker";
+
+            return null;
+        }
+    }
+}