Initial pipeline abstraction

Source/Render/Pipeline/FrontFace.rs

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+use serde::{Deserialize, Serialize};
+
+/// Winding order which classifies the "front" face.
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, Serialize, Deserialize)]
+pub enum FrontFace {
+    /// Triangles with vertices in counter clockwise order are considered the front face.
+    ///
+    /// This is the default with right handed coordinate spaces.
+    Ccw = 0,
+
+    /// Triangles with vertices in clockwise order are considered the front face.
+    ///
+    /// This is the default with left handed coordinate spaces.
+    Cw = 1,
+}
+
+impl Default for FrontFace {
+    fn default() -> Self {
+        FrontFace::Ccw
+    }
+}