make the project compile with a more recent vulkanhpp version. actually read vertex and index dimensions from the model manager
This one was not a lot of fun, a newer version of vulkanhpp, the C++ wrapper around the native C Vulkan API, was released and introduced a few changes. A lack of user-friendly documentation made the switch more painful than first expected.
On a more positive note, the model data was now fully loaded from the ModelManager and dynamic.