Update for paint fix PR

Author: mark9064

sim/displayapp/LittleVgl.cpp

@@ -156,6 +156,10 @@ void LittleVgl::SetFullRefresh(FullRefreshDirections direction) {
   fullRefresh = true;
 }
 
+bool LittleVgl::IsScrolling() {
+  return scrollDirection != LittleVgl::FullRefreshDirections::None;
+}
+
 // glue the lvgl code to the lv-sim monitor driver
 void DrawBuffer(lv_disp_drv_t *disp_drv, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t* data, size_t size) {
   lv_area_t area;

sim/displayapp/LittleVgl.h

@@ -27,6 +27,7 @@ namespace Pinetime {
       void SetNewTouchPoint(int16_t x, int16_t y, bool contact);
       void CancelTap();
       void ClearTouchState();
+      bool IsScrolling();
 
       bool GetFullRefresh() {
         bool returnValue = fullRefresh;