Merge develop into main (#303)

- `DisplayDevice` improvements related `DisplayDriver`
- Replaced incorrect usage of `spiBusHandle` with `spiHostDevice` in all SPI display devices
- Disabled `DisplayDriver` support for RGB displays for now
- Updated `GraphicsDemo` project for the above changes
- TactilityC improvements:
  - created `tt_hal_device_find()`
  - created `tt_hal_display_*`
  - created `tt_hal_touch_*`
  - created `tt_lvgl_*`
  - export `tt_app_*` calls

Boards/UnPhone/Source/hal/UnPhoneDisplay.h

@@ -1,12 +1,16 @@
 #pragma once
 
-#include "Tactility/hal/display/DisplayDevice.h"
+#include <Tactility/hal/display/DisplayDevice.h>
+#include <Tactility/hal/display/DisplayDriver.h>
+#include <Tactility/Mutex.h>
+
 #include <esp_lcd_types.h>
 #include <lvgl.h>
-#include <Tactility/hal/display/DisplayDriver.h>
 
 #include "UnPhoneDisplayConstants.h"
 
+#include <Tactility/hal/spi/Spi.h>
+
 class UnPhoneDisplay : public tt::hal::display::DisplayDevice {
 
     uint8_t* _Nullable buffer = nullptr;
@@ -14,12 +18,14 @@ class UnPhoneDisplay : public tt::hal::display::DisplayDevice {
     std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable touchDevice;
     std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable nativeDisplay;
 
-
     class UnPhoneDisplayDriver : public tt::hal::display::DisplayDriver {
+        std::shared_ptr<tt::Lock> lock = tt::hal::spi::getLock(SPI2_HOST);
+    public:
         tt::hal::display::ColorFormat getColorFormat() const override { return tt::hal::display::ColorFormat::RGB888; }
         uint16_t getPixelWidth() const override { return UNPHONE_LCD_HORIZONTAL_RESOLUTION; }
         uint16_t getPixelHeight() const override { return UNPHONE_LCD_VERTICAL_RESOLUTION; }
         bool drawBitmap(int xStart, int yStart, int xEnd, int yEnd, const void* pixelData) override;
+        std::shared_ptr<tt::Lock> getLock() const override { return lock; }
     };
 
 public: