Add register_native_texture in eframe::Frame (#4246)

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* Closes https://github.com/emilk/egui/issues/4243

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Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

crates/eframe/src/native/wgpu_integration.rs

@@ -215,6 +215,8 @@ impl WgpuWinitApp {
             storage,
             #[cfg(feature = "glow")]
             None,
+            #[cfg(feature = "glow")]
+            None,
             wgpu_render_state.clone(),
         );