Initial pipeline abstraction

Source/Render/Pipeline/FragmentState.rs

@@ -0,0 +1,17 @@
+use crate::Shader::Shader;
+use std::borrow::Cow;
+
+#[derive(Clone, Debug)]
+pub struct FragmentState {
+    /// The compiled shader module for this stage.
+    pub shader: Cow<'static, Shader>,
+
+    /// The name of the entry point in the compiled shader. There must be a function that returns
+    /// void with this name in the shader.
+    pub entry_point: Cow<'static, str>,
+
+    /*
+    /// The color state of the render targets.
+    pub targets: &'a [ColorTargetState],
+    */
+}