Combine Date and Time Settings (#1465)

Replace separate SettingSetDate and SettingSetTime with a combined screenlist.
Add DotIndicators. Similar to PageIndicator, but for use when separating screens instead of pages of a list.

Co-authored-by: Riku Isokoski <riksu9000@gmail.com>

src/displayapp/screens/settings/SettingSetDateTime.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <cstdint>
+#include <lvgl/lvgl.h>
+#include "displayapp/screens/Screen.h"
+#include "displayapp/screens/ScreenList.h"
+
+namespace Pinetime {
+  namespace Applications {
+    namespace Screens {
+      class SettingSetDateTime : public Screen {
+      public:
+        SettingSetDateTime(DisplayApp* app,
+                           Pinetime::Controllers::DateTime& dateTimeController,
+                           Pinetime::Controllers::Settings& settingsController);
+        ~SettingSetDateTime() override;
+
+        bool OnTouchEvent(TouchEvents event) override;
+        void Advance();
+        void Quit();
+
+      private:
+        Controllers::DateTime& dateTimeController;
+        Controllers::Settings& settingsController;
+
+        ScreenList<2> screens;
+        std::unique_ptr<Screen> screenSetDate();
+        std::unique_ptr<Screen> screenSetTime();
+      };
+    }
+  }
+}