Model: Add GetType() and GetGenericMethod() convenience functions

Il2CppInspector/Reflection/Il2CppModel.cs

@@ -44,6 +44,16 @@ namespace Il2CppInspector.Reflection
         // Get an assembly by its image name
         public Assembly GetAssembly(string name) => Assemblies.FirstOrDefault(a => a.ShortName == name);
 
+        // Get a type by its fully qualified name including generic type arguments, array brackets etc.
+        // In other words, rather than only being able to fetch a type definition such as in Assembly.GetType(),
+        // this method can also find reference types, types created from TypeRefs and constructed types from MethodSpecs
+        public TypeInfo GetType(string fullName) => Types.FirstOrDefault(t => fullName == t.Namespace + "." + t.Name);
+
+        // Get a concrete instantiation of a generic method from its fully qualified name and type arguments
+        public MethodBase GetGenericMethod(string fullName, params TypeInfo[] typeArguments) =>
+            GenericMethods.Values.First(m => fullName == m.DeclaringType.Namespace + "." + m.DeclaringType.BaseName + "." + m.Name
+            && m.GetGenericArguments().SequenceEqual(typeArguments));
+
         // Create type model
         public Il2CppModel(Il2CppInspector package) {
             Package = package;