Add test sim

tools/simulators/test_sim.hpp

@@ -0,0 +1,14 @@
+#pragma once
+#include "simulator_base.hpp"
+
+class Test_Sim : public Simulator_base {
+    public:
+        Test_Sim();
+        void timer() override;
+    private:
+        UI_button p_button;
+        UI_combobox p_combobox;
+        UI_label p_label;
+        UI_checkbox p_checkbox;
+        UI_slider p_slider;
+};