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/LilygoTdeck/Source/hal/TdeckKeyboard.h

@@ -6,13 +6,20 @@
 #include <esp_lcd_touch.h>
 
 class TdeckKeyboard : public tt::hal::Keyboard {
+
 private:
+
     lv_indev_t* _Nullable deviceHandle = nullptr;
+
 public:
+
+    std::string getName() const final { return "T-Deck Keyboard"; }
+    std::string getDescription() const final { return "I2C keyboard"; }
+
     bool start(lv_display_t* display) override;
     bool stop() override;
     bool isAttached() const override;
     lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
 };
 
-tt::hal::Keyboard* createKeyboard();
+std::shared_ptr<tt::hal::Keyboard> createKeyboard();