started implementing openxr stuff

src/graphics/vulkan.rs

@@ -0,0 +1,13 @@
+use bevy::render::renderer::{RenderAdapter, RenderAdapterInfo, RenderQueue, RenderDevice};
+use bevy::render::settings::WgpuSettings;
+use openxr::Entry;
+use wgpu::Instance;
+
+/// Initializes the renderer by retrieving and preparing the GPU instance, device and queue
+/// for the specified backend.
+pub fn initialize_renderer(
+    options: &WgpuSettings,
+    entry: &Entry,
+) -> (RenderDevice, RenderQueue, RenderAdapterInfo, RenderAdapter, Instance) {
+    todo!()
+}