Extract assembly resource management from UnityHeader to ResourceHelper

Il2CppInspector.Common/ResourceHelper.cs

@@ -0,0 +1,37 @@
+/*
+    Copyright 2017-2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+    Copyright 2020 Robert Xiao - https://robertxiao.ca
+
+    All rights reserved.
+*/
+
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using Il2CppInspector.Cpp.UnityHeaders;
+
+namespace Il2CppInspector
+{
+    internal static class ResourceHelper
+    {
+        // Get a string resource
+        public static string GetText(string resourceName) {
+            Assembly assembly = Assembly.GetCallingAssembly();
+            using Stream stream = assembly.GetManifestResourceStream(resourceName);
+            if (stream == null) {
+                throw new FileNotFoundException(resourceName);
+            }
+
+            using StreamReader reader = new StreamReader(stream);
+            string result = reader.ReadToEnd();
+            return result;
+        }
+
+        // Get a list of resources for a namespace
+        public static IEnumerable<string> GetNamesForNamespace(string ns) {
+            Assembly assembly = Assembly.GetExecutingAssembly();
+            return assembly.GetManifestResourceNames().Where(s => s.StartsWith(ns + "."));
+        }
+    }
+}