Initial wgpu abstraction

Source/Render/VertexBufferLayout.rs

@@ -0,0 +1,11 @@
+use super::{StepMode, VertexAttribute};
+use serde::{Deserialize, Serialize};
+use std::borrow::Cow;
+
+#[derive(Clone, Debug, Eq, PartialEq, Default, Serialize, Deserialize)]
+pub struct VertexBufferLayout {
+    pub label: Cow<'static, str>,
+    pub stride: usize,
+    pub step_mode: StepMode,
+    pub attributes: Vec<VertexAttribute>,
+}