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.

Boards/Simulator/Source/hal/SdlTouch.h

@@ -3,11 +3,15 @@
 #include <Tactility/hal/Touch.h>
 #include <Tactility/TactilityCore.h>
 
-class SdlTouch : public tt::hal::Touch {
+class SdlTouch final : public tt::hal::Touch {
 private:
     lv_indev_t* _Nullable handle = nullptr;
 
 public:
+
+    std::string getName() const final { return "SDL Pointer"; }
+    std::string getDescription() const final { return "SDL mouse/touch pointer device"; }
+
     bool start(lv_display_t* display) override {
         handle = lv_sdl_mouse_create();
         return handle != nullptr;