Implement device management (#199)

- Added `tt::hal::Device` and functions (de)register devices and search for them.
- Refactored apps: `Power` and `Display` settings apps now use the device API to find devices.
- Implemented the new API for all existing drivers for all devices, including the simulator.
- Updated HAL Configuration to return `std::shared_ptr` instead of raw pointers.
- Added test project for headless tests and implemented tests for the new code.

Tactility/Source/app/power/Power.cpp

@@ -4,6 +4,7 @@
 #include "Tactility/lvgl/Toolbar.h"
 #include "Tactility/service/loader/Loader.h"
 
+#include <Tactility/hal/Device.h>
 #include <Tactility/Assets.h>
 #include <Tactility/Tactility.h>
 #include <Tactility/Timer.h>
@@ -33,7 +34,9 @@ class PowerApp : public App {
 private:
 
     Timer update_timer = Timer(Timer::Type::Periodic, &onTimer, nullptr);
-    std::shared_ptr<tt::hal::Power> power = getConfiguration()->hardware->power();
+
+    std::shared_ptr<hal::Power> power;
+
     lv_obj_t* enableLabel = nullptr;
     lv_obj_t* enableSwitch = nullptr;
     lv_obj_t* batteryVoltageLabel = nullptr;
@@ -135,11 +138,19 @@ private:
 
 public:
 
+    void onCreate(AppContext& app) override {
+        power = hal::findFirstDevice<hal::Power>(hal::Device::Type::Power);
+    }
+
     void onShow(AppContext& app, lv_obj_t* parent) override {
         lv_obj_set_flex_flow(parent, LV_FLEX_FLOW_COLUMN);
 
         lvgl::toolbar_create(parent, app);
 
+        if (power == nullptr) {
+            return;
+        }
+
         lv_obj_t* wrapper = lv_obj_create(parent);
         lv_obj_set_width(wrapper, LV_PCT(100));
         lv_obj_set_style_border_width(wrapper, 0, 0);