tear down Engine god object #4511

just trying different things

firmware/controllers/algo/fuel/dfco.cpp

@@ -1,6 +1,5 @@
 
-#include "engine_configuration.h"
-#include "sensor.h"
+#include "pch_util.h"
 
 #include "dfco.h"
 

firmware/pch/pch_util.h

@@ -0,0 +1,18 @@
+/**
+ * just like pch.h just without full engine god object
+ */
+
+#include <rusefi/interpolation.h>
+#include <rusefi/arrays.h>
+#include <rusefi/math.h>
+
+#include "engine_configuration.h"
+
+#include "expected.h"
+#include "error_handling.h"
+
+#include "engine_module.h"
+
+#include "sensor.h"
+
+#include "timer.h"