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/TdeckPower.h

@@ -15,6 +15,9 @@ public:
     TdeckPower();
     ~TdeckPower();
 
+    std::string getName() const final { return "ADC Power Measurement"; }
+    std::string getDescription() const final { return "Power measurement interface via ADC pin"; }
+
     bool supportsMetric(MetricType type) const override;
     bool getMetric(Power::MetricType type, Power::MetricData& data) override;