feat: add vec3 type to nhollman json / fix: scene serialisation stuff

destrum/src/Components/Physics/BoxCollider.cpp

@@ -11,19 +11,14 @@ void BoxCollider::DrawDebugLines(const glm::vec4& color) const {
 
 nlohmann::json BoxCollider::Serialize() const {
     auto data = SerializeCollider();
-    data["halfExtents"] = {m_HalfExtents.x, m_HalfExtents.y, m_HalfExtents.z};
+    data["halfExtents"] = m_HalfExtents;
     return data;
 }
 
 void BoxCollider::Deserialize(const nlohmann::json& data) {
     DeserializeCollider(data);
     if (data.contains("halfExtents")) {
-        const auto& extents = data.at("halfExtents");
-        SetHalfExtents({
-            extents.at(0).get<float>(),
-            extents.at(1).get<float>(),
-            extents.at(2).get<float>()
-        });
+        SetHalfExtents(data.at("halfExtents").get<glm::vec3>());
     }
 }