Add rawled bit-bang command, restore FastLED

include/pixel_stomp_mux.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include <cstdint>
-#include <Adafruit_NeoPixel.h>
+#include <FastLED.h>
 
 class PixelStompMux {
 public:
@@ -23,12 +23,11 @@ public:
     void dump();
     void probe();
 
-private:
     uint8_t pin_dat;
     uint8_t pin_ld;
     uint8_t pin_clk;
     uint8_t pin_di;
 
-    Adafruit_NeoPixel strip;
+    CRGB leds[NUM_LEDS];
     uint8_t last_button_state;
 };