implement ScreenSaver in simulator

set ruth to stub only, because of cross compile error

Signed-off-by: Peter Siegmund <developer@mars3142.org>

components/insa/include/ui/ScreenSaver.h

@@ -2,7 +2,6 @@
 
 #include "MenuOptions.h"
 #include "common/Widget.h"
-#include <cstdlib>
 #include <vector>
 
 class ScreenSaver final : public Widget

components/insa/src/ui/SplashScreen.cpp

@@ -16,11 +16,7 @@ SplashScreen::SplashScreen(menu_options_t *options) : Widget(options->u8g2), m_o
 void SplashScreen::update(const uint64_t dt)
 {
     counter += dt;
-#ifndef ESP32
-    if (counter > 3000)
-#else
-    if (counter > 10)
-#endif
+    if (counter >= 3000)
     {
         counter = 0;
         if (m_options && m_options->setScreen)

components/ruth/persistence.c

@@ -1,5 +1,25 @@
 #include "persistence.h"
+#include "stddef.h"
 
+void *persistence_init(const char *namespace_name)
+{
+    return NULL;
+}
+
+void persistence_save(persistence_value_t value_type, const char *key, const void *value)
+{
+}
+
+void *persistence_load(persistence_value_t value_type, const char *key, void *out)
+{
+    return NULL;
+}
+
+void persistence_deinit()
+{
+}
+
+/*
 #include "esp_err.h"
 #include "esp_log.h"
 #include "esp_mac.h"
@@ -114,3 +134,4 @@ void persistence_deinit()
 
     nvs_close(persistence_handle);
 }
+*/