tear down Engine god object #4511

smallest step maybe forward

firmware/controllers/algo/fuel/injector_model.cpp

@@ -1,4 +1,11 @@
-#include "pch.h"
+
+// here am flirting with not using pch.h and not including at least Engine
+#include <rusefi/interpolation.h>
+#include <rusefi/arrays.h>
+#include "engine_configuration.h"
+#include "sensor.h"
+#include "engine_module.h"
+#include "error_handling.h"
 
 #include "injector_model.h"
 #include "fuel_computer.h"