HAL renaming & relocation (#215)

Implemented more consistent naming:
- Moved all HAL devices into their own namespace (and related folder)
- Post-fixed all HAL device names with "Device"

Boards/CYD-2432S024C/Source/hal/YellowDisplay.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <Tactility/hal/Display.h>
+#include "Tactility/hal/display/DisplayDevice.h"
 #include <memory>
 
-std::shared_ptr<tt::hal::Display> createDisplay();
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();