settings file and save/restore ui state

src/serializer.cpp

@@ -22,6 +22,9 @@ std::map<std::string /*key*/, std::function<Serializer::Type::Ref()>> Serializer
     { "vec2", [] { return std::make_shared<Serializer::Vec2>(); } },
     { "vec3", [] { return std::make_shared<Serializer::Vec3>(); } },
     { "vec4", [] { return std::make_shared<Serializer::Vec4>(); } },
+    { "ive2", [] { return std::make_shared<Serializer::IVec2>(); } },
+    { "ive3", [] { return std::make_shared<Serializer::IVec3>(); } },
+    { "ive4", [] { return std::make_shared<Serializer::IVec4>(); } },
     { "flt ", [] { return std::make_shared<Serializer::Float>(); } },
     { "cstr", [] { return std::make_shared<Serializer::CString>(); } },
 };