Added fixes for Net3

IPA.Loader/Utilities/Accessor.cs

@@ -3,6 +3,10 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Reflection.Emit;
+#if NET3
+using Net3_Proxy;
+using Array = Net3_Proxy.Array;
+#endif
 
 namespace IPA.Utilities
 {

Net3-Proxy/Extensions.cs

@@ -19,14 +19,17 @@ namespace Net3_Proxy
             => (T)GetCustomAttribute(element, typeof(T));
         public static T GetCustomAttribute<T>(this ConstructorInfo element) where T : Attribute
             => (T)GetCustomAttribute(element, typeof(T));
+        public static T GetCustomAttribute<T>(this Type element) where T : Attribute
+            => (T)GetCustomAttribute(element, typeof(T));
 
         public static Attribute GetCustomAttribute(this MemberInfo element, Type attributeType)
             => Attribute.GetCustomAttribute(element, attributeType);
         public static Attribute GetCustomAttribute(this ConstructorInfo element, Type attributeType)
             => Attribute.GetCustomAttribute(element, attributeType);
-
         public static Attribute GetCustomAttribute(this ParameterInfo element, Type attributeType) 
             => Attribute.GetCustomAttribute(element, attributeType);
+        public static Attribute GetCustomAttribute(this Type element, Type attributeType)
+            => Attribute.GetCustomAttribute(element, attributeType);
 
         public static StringBuilder Clear(this StringBuilder sb)
             => sb.Remove(0, sb.Length);