Make love::Type handle type names

TODO: Fix undefined behaviour in luax_register_type, you can't use a va_list after a reference type

--HG--
branch : dynamiccore2

src/modules/graphics/opengl/Shader.cpp

@@ -62,7 +62,7 @@ namespace
 } // anonymous namespace
 
 
-love::Type Shader::type(&Object::type);
+love::Type Shader::type("Shader", &Object::type);
 Shader *Shader::current = nullptr;
 Shader *Shader::defaultShader = nullptr;
 Shader *Shader::defaultVideoShader = nullptr;