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/Simulator/Source/hal/SdlDisplay.h

@@ -1,13 +1,13 @@
 #pragma once
 
 #include "SdlTouch.h"
-#include <Tactility/hal/Display.h>
+#include "Tactility/hal/display/DisplayDevice.h"
 #include <memory>
 
 /** Hack: variable comes from LvglTask.cpp */
 extern lv_disp_t* displayHandle;
 
-class SdlDisplay final : public tt::hal::Display {
+class SdlDisplay final : public tt::hal::display::DisplayDevice {
 
 public:
 
@@ -20,12 +20,12 @@ public:
 
     bool stop() override { tt_crash("Not supported"); }
 
-    std::shared_ptr<tt::hal::Touch> _Nullable createTouch() override { return std::make_shared<SdlTouch>(); }
+    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() override { return std::make_shared<SdlTouch>(); }
 
     lv_display_t* _Nullable getLvglDisplay() const override { return displayHandle; }
 };
 
-std::shared_ptr<tt::hal::Display> createDisplay() {
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
     return std::make_shared<SdlDisplay>();
 }