fix(core): Fixes type caching & cleanup (#422)

- [X] Fixes some issues with the type caching
- [X] Changes type check default to ignore case
- [X] Splits out type caching of insensitive and sensitive lists. This means less stuff to iterate through when checking a type against the string.
- [X] Adds an ArrayEnumerator, mostly for reference purposes (copy/paste as needed)

Projects/Server/Json/Converters/TypeConverter.cs

@@ -28,7 +28,7 @@ namespace Server.Json
                 throw new JsonException("The JSON value could not be converted to System.Type");
             }
 
-            return AssemblyHandler.FindFirstTypeForName(reader.GetString());
+            return AssemblyHandler.FindTypeByName(reader.GetString());
         }
 
         public override void Write(Utf8JsonWriter writer, Type value, JsonSerializerOptions options) =>