Move packer scans to their own library

BinaryObjectScanner.Packer/InstallAnywhere.cs

@@ -0,0 +1,59 @@
+using System;
+using System.IO;
+using BinaryObjectScanner.Interfaces;
+using BinaryObjectScanner.Wrappers;
+
+namespace BinaryObjectScanner.Packer
+{
+    // TODO: Add extraction, which may be possible with the current libraries but needs to be investigated further.
+    // https://raw.githubusercontent.com/wolfram77web/app-peid/master/userdb.txt
+    public class InstallAnywhere : IExtractable, IPortableExecutableCheck
+    {
+        /// <inheritdoc/>
+        public string CheckPortableExecutable(string file, PortableExecutable pex, bool includeDebug)
+        {
+            // Get the sections from the executable, if possible
+            var sections = pex?.SectionTable;
+            if (sections == null)
+                return null;
+
+            string name = pex.FileDescription;
+            if (name?.StartsWith("InstallAnywhere Self Extractor", StringComparison.OrdinalIgnoreCase) == true)
+                return $"InstallAnywhere {GetVersion(pex)}";
+
+            name = pex.ProductName;
+            if (name?.StartsWith("InstallAnywhere", StringComparison.OrdinalIgnoreCase) == true)
+                return $"InstallAnywhere {GetVersion(pex)}";
+
+            return null;
+        }
+
+        /// <inheritdoc/>
+        public string Extract(string file, bool includeDebug)
+        {
+            if (!File.Exists(file))
+                return null;
+
+            using (var fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
+            {
+                return Extract(fs, file, includeDebug);
+            }
+        }
+
+        /// <inheritdoc/>
+        public string Extract(Stream stream, string file, bool includeDebug)
+        {
+            return null;
+        }
+
+        private string GetVersion(PortableExecutable pex)
+        {
+            // Check the internal versions
+            string version = pex.GetInternalVersion();
+            if (!string.IsNullOrEmpty(version))
+                return version;
+
+            return "(Unknown Version)";
+        }
+    }
+}