Plugins: Add PostProcessMetadata hook

Il2CppInspector.Common/IL2CPP/Metadata.cs

@@ -16,7 +16,7 @@ namespace Il2CppInspector
 {
     public class Metadata : BinaryObjectReader
     {
-        public Il2CppGlobalMetadataHeader Header;
+        public Il2CppGlobalMetadataHeader Header { get; set; }
 
         public Il2CppAssemblyDefinition[] Assemblies { get; }
         public Il2CppImageDefinition[] Images { get; }
@@ -217,6 +217,9 @@ namespace Il2CppInspector
             StringLiterals = new string[stringLiteralList.Length];
             for (var i = 0; i < stringLiteralList.Length; i++)
                 StringLiterals[i] = ReadFixedLengthString(Header.stringLiteralDataOffset + stringLiteralList[i].dataIndex, stringLiteralList[i].length);
+
+            // Post-processing hook
+            PluginHooks.PostProcessMetadata(this);
         }
 
         // Save metadata to file, overwriting if necessary

Il2CppInspector.Common/Plugins/PluginHooks.cs

@@ -0,0 +1,17 @@
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
+
+// This is the ONLY line to update when the API version changes
+using Il2CppInspector.PluginAPI.V100;
+
+namespace Il2CppInspector
+{
+    // Hooks we provide to plugins which can choose whether or not to provide implementations
+    internal static class PluginHooks
+    {
+        public static void PostProcessMetadata(Metadata metadata) => PluginManager.Try<IPostProcessMetadata>(p => p.PostProcessMetadata(metadata));
+    }
+}