Initial wgpu abstraction

Source/Render/IndexFormat.rs

@@ -0,0 +1,17 @@
+use serde::{Deserialize, Serialize};
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, Serialize, Deserialize)]
+pub enum IndexFormat {
+    /// Indices are 16 bit unsigned integers.
+    UInt16 = 0,
+
+    /// Indices are 32 bit unsigned integers.
+    UInt32 = 1,
+}
+
+impl Default for IndexFormat {
+    fn default() -> Self {
+        Self::UInt32
+    }
+}