Add occupancy UI for the light app (#25262)

Author: andy31415

examples/lighting-app/linux/BUILD.gn

@@ -51,6 +51,7 @@ executable("chip-lighting-app") {
     deps += [
       "${chip_root}/examples/common/imgui_ui",
       "${chip_root}/examples/common/imgui_ui/windows:light",
+      "${chip_root}/examples/common/imgui_ui/windows:occupancy_sensing",
       "${chip_root}/examples/common/imgui_ui/windows:qrcode",
     ]
   }

examples/lighting-app/linux/main.cpp

@@ -30,6 +30,7 @@
 #if defined(CHIP_IMGUI_ENABLED) && CHIP_IMGUI_ENABLED
 #include <imgui_ui/ui.h>
 #include <imgui_ui/windows/light.h>
+#include <imgui_ui/windows/occupancy_sensing.h>
 #include <imgui_ui/windows/qrcode.h>
 
 #endif
@@ -94,6 +95,7 @@ int main(int argc, char * argv[])
     example::Ui::ImguiUi ui;
 
     ui.AddWindow(std::make_unique<example::Ui::Windows::QRCode>());
+    ui.AddWindow(std::make_unique<example::Ui::Windows::OccupancySensing>(chip::EndpointId(1), "Occupancy"));
     ui.AddWindow(std::make_unique<example::Ui::Windows::Light>(chip::EndpointId(1)));
 
     ChipLinuxAppMainLoop(&ui);