Advanced Aura feature

Groundwork for 'advanced' aura modes
Add single zone + Doom light flash
Fix mocking for ROGCC
Better prepare & change to mapping of keyboard layouts to models and functions
Refactor and begin using new key layout stuff
Enable first arg to rogcc to set layout in mocking feature mode
Complete refactor of key layouts, and to RON serde

rog-aura/src/effects/static_.rs

@@ -0,0 +1,25 @@
+use serde::{Deserialize, Serialize};
+
+use super::EffectState;
+use crate::advanced::LedCode;
+use crate::layouts::KeyLayout;
+use crate::{effect_state_impl, Colour};
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct Static {
+    address: LedCode,
+    /// The starting colour
+    colour: Colour,
+}
+
+impl Static {
+    pub fn new(address: LedCode, colour: Colour) -> Self {
+        Self { address, colour }
+    }
+}
+
+impl EffectState for Static {
+    effect_state_impl!();
+
+    fn next_colour_state(&mut self, _layout: &KeyLayout) {}
+}